Hi - yes, with these types of questions. Although you might also come across 'proof of tangent,' where there is just one set of coordinates. Here's a video that might help: ruclips.net/p/PLPglScc3TJ-PlCaMY8JMMoRhGefdYB8N9. All very best S :-)
dude sometimes you just gotta relax you know. the reason its difficult for you is because you're over complicating things for yourself, trust me i was like that too until i learned how to relax. you know i struggled with this alot until i found out the only thing i was missing was the quadratic formula. and then i aced this, you can too :)
Perhaps a little mini quiz at the end of your lessons would be an idea. Students nod in agreement when a qualified teacher, like yourself, explains it all, but let's see their grimacing begin when they're put to the test.
Thanks Simon, I now understand how to do this equation. This really threw me in my exam. Nevertheless, thanks for dedicating a video to answer my question :)
Lol, no worries and glad to help. This topic tends to be fairly advanced so I don't think you'll come across it in year 8 .... more likely 10 or 11? Great that you're watching the videos now though and all best with your studies :-)
I’m 53 so just started again ,are these skills given during the coarse of a term ,I assume if the questions are being asked then the coarse would cover all necessary skills%?
Hi - Great that you’re working on these and please do let me know if you need any help. Here’s a post that might be a good starting point: www.3minutemaths.co.uk/gcse-revision-by-grade/. All very best S
+luj jaleel - Hi - great question - yes, you could but you'd need to deal with the 2xsquared, as completing the square only works with a single value of xsquared. If you divide through by 2 you'd get: xsquared - 2x - 5/2 = 0 (x-1)^2 - 7/2 = 0 (I've missed a couple of steps here - is that OK?) x = 1 + root7/2 x = 2.87 x=1-root7/2 x = -0.87 I hope that's all OK ... if you need a full breakdown happy to help. All best S
hey, this video was very helpful thank you! i just have a question for one of my tests and i tried to look every were but still cant find an answer. the question is 2p^2 - p = 15. i know p=3 because i worked it out kind of guessing but i want to know how you would come to an answer like this in case i have questions with higher numbers. I know that p is three but can one of you guys tell me without being smart -so it is easy for my to understand- how to do it?
ITS A METHOD OF UR CHOICE, U CAN USE WHAT U WANT. BUT QUADRATIC FORMULA IS APPLICABLE TO ALL EQUATIONS WHAT EVER U HAVE, IF U CANT FACTOR THEM , USE THE QF.
Hi ... you've got to be a little careful with using the quadratic formula. It only relates to quadratic equations, where you have an xsquared term, an x term and a number. In the example I've got a circle and the formula won't work - sorry! :-) .
Hi - as mentioned to Sadat - unfortunately the formula won't work with this example as it's a circle. It is a good idea to use QF but you need to make sure it's for solving a quadratic equation. All best S :-)
Hi - ... unfortunately you wouldn't be able to find the factors of 2xsquared - 4x - 5 by trial and error. It's a little difficult to know when to use Quad formula (or completing the square), but generally: - when there's a number in front of the xsquared - if the question says something like '3 sig fig or 2 decimal places.' Hope that helps and all best S
Hi If xy = 392 and x/y = 8 (which also means x = 8y) then Change the value of x (8y)y = 392 So 8ysquared = 392 Divide by 8 ysquared = 49 Then square root y must equal +7 or -7 You can then use these to work out x x = 8y So x = 8(7) = 56 Or x = 8(-7) = 56 Hope that helps and all very best S
Hi I hope this will read OK: Substitute y=x+1 x^2 + (x + 1)(x + 1) = 25 Expand x^2 + x^2 + 2x + 1 = 25 2x^2 + 2x - 24 = 0 It’s easier to divide everything by 2 x^2 + x - 12 = 0 Factorise (x - 3)(x + 4) = 0 So x = 3, x = -4 Hope this helps and all best S :-)
@@3minutemaths this help me, thanks. Though from reading the solution, I realize I must put more time into factorization. That's why I couldn't get the answer correct, I wasn't factoising properly.
@@dharveyftw7349 Hi - no worries and glad to help. Here’s a link to a playlist on factorising, that might be useful: ruclips.net/p/PLPglScc3TJ-PgEVPNvC2blKA0zlg5hQVT. All very best S
Hi - yes, you could solve by completing the square ... although it might be potentially a little more difficult. Here's a playlist that might be of interest: ruclips.net/p/PLPglScc3TJ-PJtiMqvASoTTGE7i9FQhJV. Best S
+Adam Ahmed - Not really ... substitution is the way to go with these types of questions. There's a few more examples in this playlist ruclips.net/p/PLPglScc3TJ-PhJ6J33bzvWJBQUQKg-LZ4. All best S :-)
Hi - if this kind of question was on the non calc, you shouldn't need the formula and the values would usually be whole numbers or fairly simple fractions. Best S
Hi - yes, it can be a little tricky. Here's a playlist on solving quadratics, using the formula, that might help: ruclips.net/p/PLPglScc3TJ-O2zVEZXTVuP-o8WYm93xyd. All best S :-)
is two coordinates necessary
Hi - yes, with these types of questions. Although you might also come across 'proof of tangent,' where there is just one set of coordinates. Here's a video that might help: ruclips.net/p/PLPglScc3TJ-PlCaMY8JMMoRhGefdYB8N9. All very best S :-)
This can be up to 7 marks on a GCSE paper out of 80, which is too high an amount for my liking. If this is on the non-calc today you've saved my life
Sarcastic Brit it was in the non calc as a 4 marker
i thought i was just dumb but after this vid ive lost the will to do all this stuff smh - your video is really good it just my stupid brain
Hi - it's great that you're watching the videos and trying to work through. All very best with your studies :-)
dude sometimes you just gotta relax you know. the reason its difficult for you is because you're over complicating things for yourself, trust me i was like that too until i learned how to relax. you know i struggled with this alot until i found out the only thing i was missing was the quadratic formula. and then i aced this, you can too :)
great explanation. but you need to write a little bigger.
hahahah
Perhaps a little mini quiz at the end of your lessons would be an idea. Students nod in agreement when a qualified teacher, like yourself, explains it all, but let's see their grimacing begin when they're put to the test.
Thanks Simon, I now understand how to do this equation. This really threw me in my exam. Nevertheless, thanks for dedicating a video to answer my question :)
Joseph Parsons You're very welcome and all best with your studies :-)
Simon Deacon Thanks for you help and thanks.
Damn, that's the exact same question on my homework
Lol same here
AH LIE
Lucky you 🙂
Totally forgot to ask my tutor about this and have my exam tomorrow, this has helped me so much! Thank you :)
You taught me what I didn't even know it's existence ! Much respect!Thanks for sharing from your knowledge.
Great vid, my problem is the rearrange or substitution part, any tips? In the GCSEs I need to get this right as I am projected an 8
You mean substituting for instance 2-Y into X^2? Because I get that bit.
Thanks,you helped me ALIOT.i got a a* on math for GCSE
Congratulation . I Am sitting for IGCSE this year hope i get a* in math too
Hi - Glad to help and all best for your results :-)
Hi - that's great and glad to help :-)
thanks alot for both sacrificing your time helped us. and again thanks.
+Sade Hassan - Glad to help and all best S :-)
Thanks for the tutorial! It really helped
Thank you!
MY BRAIN!!! I'm in year 8 would I need this for my year? And thanks for helping
Lol, no worries and glad to help. This topic tends to be fairly advanced so I don't think you'll come across it in year 8 .... more likely 10 or 11? Great that you're watching the videos now though and all best with your studies :-)
last year pinhead
Hi Simon, can you please help me with this question?
5x - y = 5
2y - x^2 = 11
2:03 please make sure your letters are written correctly. was distracted looked back and had to rewind, yea easy solution but still.
yaaah. .you aare truly a genuine genious...thank you very much..
Glad to help and all best S :-)
I learned how to do problem for my maths worksheet and thank you
Thanks! helped a lot with my homework.
Glad to help and all best S :-)
The only explanation I understand
You earned a new subscriber!
I’m 53 so just started again ,are these skills given during the coarse of a term ,I assume if the questions are being asked then the coarse would cover all necessary skills%?
Hi - Great that you’re working on these and please do let me know if you need any help. Here’s a post that might be a good starting point: www.3minutemaths.co.uk/gcse-revision-by-grade/. All very best S
I have a teacher I go to ,making decent progress but just started ,I am quite enjoying it
@@BobBob-uv9fq That’s great and all best with your studies :-)
Absolute star👍🏻 real life saver mate
Glad to help and all best S :-)
thanks so much dude this saved me big time :) i owe you one.
Great video.Can I use the completing square method instead of the formula method ?
+luj jaleel - Hi - great question - yes, you could but you'd need to deal with the 2xsquared, as completing the square only works with a single value of xsquared. If you divide through by 2 you'd get:
xsquared - 2x - 5/2 = 0
(x-1)^2 - 7/2 = 0 (I've missed a couple of steps here - is that OK?)
x = 1 + root7/2
x = 2.87
x=1-root7/2
x = -0.87
I hope that's all OK ... if you need a full breakdown happy to help.
All best
S
Great video. Helped me a lot
+Erkan Keceli - Glad to help and all best S :-)
Thanks a lot it helped me alot
That’s great and glad to help. All best S :-)
Thank you for helping me, I'm in year 7, and it really helped me a lot.
Very welcome and glad to help :-)
so good thanks for the help
Why don't we just use the mode 5, 3 in Casio fx991 calculators to come out with the two x coordinates instead of using the formula?
Thx it's very useful and ur clear to understand!
hey, this video was very helpful thank you! i just have a question for one of my tests and i tried to look every were but still cant find an answer. the question is 2p^2 - p = 15. i know p=3 because i worked it out kind of guessing but i want to know how you would come to an answer like this in case i have questions with higher numbers. I know that p is three but can one of you guys tell me without being smart -so it is easy for my to understand- how to do it?
Hello sir, i did factoring instead of the quadratic formula and my 2 sol are x=3 and x=-1 or we are supposed to use quadratic formula
ITS A METHOD OF UR CHOICE, U CAN USE WHAT U WANT. BUT QUADRATIC FORMULA IS APPLICABLE TO ALL EQUATIONS WHAT EVER U HAVE, IF U CANT FACTOR THEM , USE THE QF.
Hi ... you've got to be a little careful with using the quadratic formula. It only relates to quadratic equations, where you have an xsquared term, an x term and a number. In the example I've got a circle and the formula won't work - sorry! :-) .
Hi - as mentioned to Sadat - unfortunately the formula won't work with this example as it's a circle. It is a good idea to use QF but you need to make sure it's for solving a quadratic equation. All best S :-)
Thanks
ya quadratic is borringer
At 4:14 Why cant you use another way instead of using a Quadratic Formula to cancel things? Like Factorising?
Hi - ... unfortunately you wouldn't be able to find the factors of 2xsquared - 4x - 5 by trial and error. It's a little difficult to know when to use Quad formula (or completing the square), but generally:
- when there's a number in front of the xsquared
- if the question says something like '3 sig fig or 2 decimal places.'
Hope that helps and all best S
Actually help thanks hope I pass tomorrow test
If you have x (y) equals 392 and x divided by y equals 8 then how do I do that
Hi
If xy = 392 and x/y = 8 (which also means x = 8y) then
Change the value of x
(8y)y = 392
So
8ysquared = 392
Divide by 8
ysquared = 49
Then square root
y must equal +7 or -7
You can then use these to work out x
x = 8y
So x = 8(7) = 56
Or x = 8(-7) = 56
Hope that helps and all very best S
Your vedio was good I still didn'tunderstand.
Thankyou.
Thank you king
Cheers pal very much helped with my hw👍🏻
is there a video on completing the square? Otherwise very helpful.
Hi - here's the latest playlist on completing the square ruclips.net/p/PLPglScc3TJ-PStRNnoKPCqhJAzBPNv3y-. All best S :-)
Well explained ,a big thanks to you. Subbed!
Big help thanks
Excelent!
Thank you simon
This is in my foundation paper wtaf😂
Thanks! Such a great explanation! Love the way you did your 8 at 7:30! :)
What would I do if the equations were for example..
4x^2+4y^2=25
2y=2x+1
???
Hi - perhaps the easiest would be to divide the second equation through by 2:
y = x + 1/2 and then substitute as video. All best S :-)
Simon Deacon great! Thank you!
Tou are screwed is your answer
Great channel! This helped me alot! thnx!
(2 +- 14) / 4 = 4 or 3
But in my answer sheet, it says x is either 3, or -4
Why?
y=x+1
x^2 + y^2 = 25
Hi
I hope this will read OK:
Substitute y=x+1
x^2 + (x + 1)(x + 1) = 25
Expand
x^2 + x^2 + 2x + 1 = 25
2x^2 + 2x - 24 = 0
It’s easier to divide everything by 2
x^2 + x - 12 = 0
Factorise
(x - 3)(x + 4) = 0
So x = 3, x = -4
Hope this helps and all best S :-)
@@3minutemaths this help me, thanks. Though from reading the solution, I realize I must put more time into factorization. That's why I couldn't get the answer correct, I wasn't factoising properly.
@@dharveyftw7349 Hi - no worries and glad to help. Here’s a link to a playlist on factorising, that might be useful: ruclips.net/p/PLPglScc3TJ-PgEVPNvC2blKA0zlg5hQVT. All very best S
This was really helpful. You explained it really clearly and understandable. Thank you very much!! :)
I'm in year 7 and I have to do this!!
very helpful thanks alot ☺
thank for posting
it help for solving out problems
Glad to help and all best S :-)
thank u so much !!
Thank You , it hepled a lot !
That's great and glad to help - all best S :-)
Good job
very good video 💯
What if there is a 2x^2
This is my quastion:
2x +y =5
2x^2 +y^2 =1148
That can be done by using demolition method .
great video!
You explain the working of the examples really well but your writing is very difficult to read.
hello please can you solve this problem :
3X^2+2xy+y^2=11;
3x-4y=19
Can someone please do this question (6mark)
y=2X^2
y=20-3x
Good thanks
wait when you get the quadratic why not factorise
its not possible
Thank you 💚
+Shiann - - Glad to help and all best S :-)
SO USEFUL!!! Thank you so much (:
thx realy helped
genius
thanks a lot understandable
Glad to help and all best S :-)
Thanks
The coordinates are the x values written either way
Now what if it is like this;3y=5 -2x , y power 2 = xy+5
Hi - here you go: ruclips.net/video/enXfJST5ZMk/видео.html. Hope it helps and all best S
Could u not square the route? Why
Hi - yes, you could solve by completing the square ... although it might be potentially a little more difficult. Here's a playlist that might be of interest: ruclips.net/p/PLPglScc3TJ-PJtiMqvASoTTGE7i9FQhJV. Best S
why cant you take x=2-y instead of y=2-x
Ryan 901 Hi - you could do either. Best S
U for forgot -4 when applying the quadratic formula
Hi - at 4.54? It's -4 but the formula asks for -b ... so - (-4) is +4.
Hope that's OK, best S
Ooohh. Thank you that really confused me😂 wish me luck for my finals
All best!
hello sir why did u put - 4 as quadratic equation then it was -4 and u solved +16 it should be -16
Hi - please can you give me the time point?
this showed up on edexcel paper 1 i think i could get a few marks on it
Can u solve on other way
+Adam Ahmed - Not really ... substitution is the way to go with these types of questions. There's a few more examples in this playlist ruclips.net/p/PLPglScc3TJ-PhJ6J33bzvWJBQUQKg-LZ4. All best S :-)
Are the videos from 2006 not working??
They should be fine ...
2x+3÷y=16
3x-2÷y=-2 could u pls tell me its solution
you x seems like 2
wow you did it BETTER
I'm first year average rank and this is on out test with no keys and no answers.
ko
We have this on the non calculator paper. No way is anyone going to work it out in 10 minutes with quadratic formula
Hi - if this kind of question was on the non calc, you shouldn't need the formula and the values would usually be whole numbers or fairly simple fractions. Best S
With teacher easy peasy ,without teacher greasy cheesy
when I worked it on calculator, I got x=7.32 or x=-5.32
Hi - not sure how that happened ... :-)
Simon Deacon
its OK though, I'm probably wrong anyway. thanks
chap its 1.87 not 2.87
no my bad it is 2.87
My exam is tomorrow! :-0
Hope it goes well!
me to0
The quadratics bit really confused me
Hi - yes, it can be a little tricky. Here's a playlist on solving quadratics, using the formula, that might help: ruclips.net/p/PLPglScc3TJ-O2zVEZXTVuP-o8WYm93xyd. All best S :-)
Lmao we r learning this in year 7....when will I ever need thks in lyf
?
its not about needing it its to show you can learn things and do them for later on in life
Achew
I have no clue how to do this
I watch this during my exam,,is this called cheat?
*Earape has entered the chat*
maths exam today
All best! :-)
Lost me but thanks
Yes, these can get a little complex - great that you've had a go though :-)
big size sir
Yuu
lol i am gr.8 and
i know this