MATH PORN!! I was so frustrated using this formula and not knowing where it comes from! Why don't teachers start by writing the proof first? Now it makes sense for me to use it. Thanks a lot!
So nice of you dear Tobechukwu Nwankwo! I'm sure you are a brilliant and bright student 👍 I'm glad you liked it! Please keep sharing my channel with your family and friends. Take care dear and all the best😃
I'm sure you are a brilliant and bright student 👍 I'm glad you liked it! Please keep sharing my channel with your family and friends. Take care dear and all the best😃
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@premath would you say this is sufficient to prove that “all quadratics have two complex roots”? What I mean is, is this enough as a proof without having to use some more advanced theorems?
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I guess because denominators are never negative...if they are incase, the negative sign shifts to the numerator....and if the numerator and denominator both are negative, the negative signs cancel out each other!!
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Sir I don't understand one thing when you do under root on b2 why don't you write b and for 4a2 you write 2a . Sir please tell I don't understand this thing .
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Dear Badar, 4 can be written as 2² . 4a² = (2²)(a²) = (2a)² => Sqrt (2a)² = 2a If you still have a question, please don't hesitate to reach me. Thanks for asking. Take care dear and keep watching😃
@@badarahmad6860 Since we are dealing with the Quadratic Equations, the highest degree(power) is 2 => That means, we must have two solutions => That's why we write ±sign after square root => one solution with + sign, and the other with - sign. Hope that helps. All the best. Take care Badar 😃
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Yah to phazool cheez hai na mai to kuch be prove karu ga apni marzi ksi kuch be add ya multiply kr ka. Eg. 3=9. Square b/s 3²=9² 9=9² 9=√9² 9=9 :. 3=9 Kuch aaisa he phazool hai I know maina kuch be likha upar (yah ghalat hai) although it is Same
I like the way that you go step by step and not take it for granted that we should already know the smallest step.
Thanks Melcom O for the feedback. Kind regards :)
The proof of the formula was not easy to understand because it long and winding explanation even though he make it step by step
I am Japanese. In Japan, this lighting is not on RUclips and it helped me a lot. Thank you so much.
you are the biggest legend and just rescued my math assignment! keep on going my guy
Sir God will bless you forever , your too good
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What happened to the (b/a)x on the left hand side after bringing x²+(b/2a)² together? Where did it go?
Completing the square is one of the proofs in the quadratic formula.
You are correct my friend!
Take care dear and all the best😃 Have a very happy and blessed New Year!
You are a best teacher I ever met💯❤
MATH PORN!! I was so frustrated using this formula and not knowing where it comes from! Why don't teachers start by writing the proof first? Now it makes sense for me to use it. Thanks a lot!
OMG you are there best sir. More wisdom and grace. This just saved me a punishment in class
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Me halfway to the video: Oh yeah, it's all coming together
I'm sure you are a brilliant and bright student 👍 I'm glad you liked it! Please keep sharing my channel with your family and friends. Take care dear and all the best😃
Love you bro what great explanation.
Thanks so much!! ur a much better teacher than my one !👑💖
Thank you sir it cleared all my doubts on my halfway of the video...!!Really sorry great explanation..!! 👍👍
thank you so much sir
I stuck in 5:15
I was thinking how 4a² is lcm but now I understand by this fabulous explanation 🙏
I was stuck when I did not know to add b/2a on both sides, if I had known that I could've done rest of it
Thanks
Sir in 4.00 minute where did the bx/a go sir?
right? i want to know too
THANK YOU SIR....
Very much clear...
Love from Kerala, India...
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Very happy New Year!
@@PreMath 😍👍
I like your teaching love from india
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Thank you very much for this useful video.
@premath would you say this is sufficient to prove that “all quadratics have two complex roots”? What I mean is, is this enough as a proof without having to use some more advanced theorems?
Thank you very much sir for the way you explained it step by step I really appreciate .
Once again thank you sir
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thanks sir and love from Rajastan, India
I am new on your channel
But I really like your proof
Thanks sir
Love you a lot.
Thanks and welcome dear Adarsh Patel! Take care😃
Very nice explanation....
.. 👍
How did you get rid of (b/a)x
What we call that process in which we take middle part half square and add on both sides .
This might be a dumb question but why isnt x divided by A in the second step, why it is b/a x not bx/a?
Can you tell me why we don't break under root from Numrators. Thats the main step
Very clear! Exemplary explanation.
Sir may you live long thanks 😊😊😊
It's amazing 😍😍😍 sir
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--
most easiest way amazing sirr
Thank you sir ☺️
Just amazing tutorial video sir🇮🇳🇮🇳🇮🇳
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simple manipulation , amazing formulation!
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Since when did this new rule come with you have to devide letter on all other letters?
2:27 there is something missing, explain why you to divide by two and then square.
You made your common denominator 4a2 but only multiplied -c/a with 4a, why is it that?
Sorry for answering, but I think it should be done so the denominators on the right side would be the same, hehe
Math teacher ❌
Indian guy on RUclips ✅
I’ve really learned , thanks
Thank you very much🙏🙏
6:38 & 6:58
After sq rooting denominator 4a² why didn't you write ±2a, bcoz sq root of 4a² is ±2a
And ± / ± = + ,. Right?
I guess because denominators are never negative...if they are incase, the negative sign shifts to the numerator....and if the numerator and denominator both are negative, the negative signs cancel out each other!!
Tq you very much sir.For your explanation.😊😊😊
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Why we multiply 4a to -c/a on right hand side
AFRASIYAB AKHUNZADA he has taken the square of (b/2a)2
So the denominators on the right hand side would be the same
5:43 Did you know that you are using the "Commutative Property" with addition?
Sir I don't understand one thing when you do under root on b2 why don't you write b and for 4a2 you write 2a . Sir please tell I don't understand this thing .
He simplified the square root of 4a^2. Square root of 4 is 2, and square root of a^2 is a, leaving 2a.
Very nice explanation
Dear Thirumalai Nathan, I'm sure you are a brilliant and bright student 👍 I'm glad you liked it! Please keep sharing my channel with your family and friends. Take care dear and all the best😃
Root memorization. Most people can show you what you need to do. Explaining why is what most people cannot tell you.
sir how did you make 2a out of under root 4a² it becomes 4a when we cut ² with under root
Dear Badar, 4 can be written as 2² .
4a² = (2²)(a²) = (2a)²
=> Sqrt (2a)² = 2a
If you still have a question, please don't hesitate to reach me.
Thanks for asking. Take care dear and keep watching😃
thanks sir i have another qs why we write ±sign after square root
@@badarahmad6860 Since we are dealing with the Quadratic Equations, the highest degree(power) is 2 => That means, we must have two solutions => That's why we write ±sign after square root => one solution with + sign, and the other with - sign. Hope that helps. All the best.
Take care Badar 😃
nice explanation sir you are great
Thank you sir you can teach us a very easy quid to solve this question
2 is missing if we open x+b/2s raised power square
Thank you. You are a godsend.
Thank you so much for this
Thankyou for making this video
You are very welcome Kanchan! I'm sure you are a brilliant and bright student 👍 I'm glad you liked it! Please keep sharing my channel with your family and friends. Take care dear and all the best😃
man thank u so muchh this made me understand
Well explained!
why did we divide b/a by 2?
also, why didn't we take bx/a in the 4th line
This is a little late, but you do it to complete the square
Wow it has been 2 year still helping
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@@PreMath You are welcome, thank you, you too you are such a great teacher
Thank you so much sir
very fine you explein
Thank you ❤️ ❤️
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Very clear
Wow sir I was searching this conclusion and just found it thanks.
So nice of you Nihar dear! Stay blessed and healthy😃
Very happy New Year!
You are a legend!
So nice of you Sasrika
Thanks dear for the feedback. You are awesome 👍 Take care dear and stay blessed😃
Love and prayers from the USA!
Thank u much sir god bless u
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This video doesn’t explain….WHY DID YOU RANDOMLY DECIDE TO DEVIDE BY 2….why not do b/50a?….just coz it suits you doesnt mean its a proof!
it is not random.if u have (u+v)^2 it gives you:u^2+2(u)(v)+v^2 then if u compare 2(u)(v)=(b/a)x it gives you v=b/2a as simple as that
and if you look at the equation it look like a a^2+2(a)(b)+b^2
this is the part i don’t understand too! why are we dividing by 2!
Why we should divide b/a by 2...plzzz ans
he has taken half the CO efficient
for completing the square
What is proof of quadratic equation using quadratic formula.
thank you sir so much
Thank you sir
God bless u the son of maths
thanks a lot sir
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Thankyou sir
Please accept Our humble thanks contribution. Regards
Like putting together a puzzle 🎉
Satisfy the quadratic equation by putting the obtained value of x in that equation
Nice
Where this formula is, we will use...
By completing the square, solve the quadratic equation 4.6y+3.5y-1.75=0 .
That is not a quadratic equation
Thank you Sir. Sir I am watching this video today.
03:01:2024
Please explain with a sketch....
Masta masta
Expressed good
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God Bless
There is an easier why to do this
Multiply by 4A and complete square
It is very complicated
Nicee
Some one explain to me in malayalam 😢
👌
🅾🅿 🆂🅸🆁
Thanks Rajan dear for the feedback. You are awesome 👍 Take care dear and stay blessed😃
Yah to phazool cheez hai na mai to kuch be prove karu ga apni marzi ksi kuch be add ya multiply kr ka. Eg. 3=9. Square b/s 3²=9²
9=9²
9=√9²
9=9
:.
3=9
Kuch aaisa he phazool hai
I know maina kuch be likha upar (yah ghalat hai)
although it is Same
Sir plz speak fasterr