SAT® Hardest Algebra Questions: Secret Hacks
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- Опубликовано: 25 июл 2024
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yes sat good luck to whoever is taking sat tmr YOU GOT THIS
of yes hope so good luck also
Bruh I study so little but I might do my best
@@jalvarez1645 last minute huh? just don't freak out and do a run through everything
No one I took early college classes in English I feel I learn a lot that might help because English is not my first language
Thanks! I hope you do amazing on yours!
the trick on the second one was absolutely godly, I usually just do the quadratic formula but!!!! now I have another way
look up "vieta's formulas"
she literally did the same thing, what do you mean by godly?
That's literally 9th grade knowledge
Good luck for 5th October SAT
Good luck dude
GOOD LUCK TO US :)
GOOD LUCK :)
GOOD LUCK :)
Taha Muhammad gl guys
I’m cramming for tomorrow-thanks for the video!
same
Literally sameeee
Ditto!
HEY GUYS ME TOO WOOOOO
Same
If the sat ever asks the product of all values of m, you can use c/a
Ain't these two easy as compared to Indian Standards?
@@ijustcomment3533 They're easy compared to most countries' standards, since SAT questions aren't hard, the difficulty is that they must be made during a small window of time.
Also when it gives you an equation and tells you to put the solution in an expression , you can solve for the coefficient times the variable by multiplying a certain number by the variable
Example
If 7x=14 then 21x+2 is
Multiply both sides by 3
21x=42
(42) +2 = 44
I JUST COMMENT The questions are easy, but you have barely over a minute for each. If you spend more than 2 minutes on one problem, that might ruin the whole math no calculator section.
@@ijustcomment3533 so true
8:52 you can use a method for finding the product. If sum is -b/a, then product is c/a.
These two methods were taught to me when I was in 10th Grade (in India btw).
I'm literally keeping on watching things about SAT bc I'm too nervous to sleep and I got test tomorrow.
Good luck aug 24 bros
Same!
I just wanted to say that I started off with an 1050 on the SAT and I started watching your videos and really studying hard and I got a 1170 (a 75% scholarship), I'm hoping for a 1290 to get a full ride!!! Thank you so much, I honestly couldn't have improved so much if it weren't for you.
Thanks, Michal!! Good luck to you and keep studying!! :)
What's the name of the university you applied to?
I was wondering the same thing, what university are you applying to?
I got a 1125 my first time ,I'm trynna get a 1200 or higher
How did you get scholarship with 1170? I want it too
As a note, we meant "discriminant" instead of "determinant" for 7:30. Thanks to all of our viewers that caught the mistake!
i dont mean to be so offtopic but does any of you know of a tool to get back into an Instagram account??
I was dumb lost my password. I appreciate any tricks you can give me!
@Finn Matteo instablaster =)
@Clay Emery i really appreciate your reply. I got to the site through google and I'm waiting for the hacking stuff atm.
Seems to take a while so I will get back to you later with my results.
@Clay Emery it worked and I actually got access to my account again. I'm so happy:D
Thanks so much you really help me out!
@Finn Matteo You are welcome :)
So screwed for tomorrow 😒good luck tho everyone 😁
thanks same 2 u
You got this
No one you got this too!!!
@Etsy Harisnot good .......840 you?
@Etsy Haris that's nice, suggestion do everything you can make thing easier the farther you get, my sat score isn't good because a sort of passing grade is 1200 and thank you I hope I do good. Good luck in school and getting what you want
I'm currently taking differential equations and that second problem's shortcut has BLEW MY MIND!!!! I love u Super Tutor !!!
That -b/a thing is pure gold
I took the AP call but didn’t know how to do the first one lol now I know how to these problems. Thanks a lot
the last shortcut is just nuts! thanks a lot
for the product, you can use c/a
GOOD LUCK TO AUG 24 GANG!!! we got this!
I’m cramming lol
30 minutes before the test center opens
DesignerGirlFashion. How’d you guys do?
Oct 5*
scores?
I have it tomorrow and as a homeschooled student I haven’t done trig or advanced algebra and Im pretty nervous. This was helpful tho, thanks!
Good luck on yours. Ez 1520
what did you get?
@@skytrexz3714 500 :/ but a high English score so that's something
oof maybe you should try it again
@@skytrexz3714 nahh, I don't think I will need an advanced understanding of quadratic functions as a history major lol
Hello! Mam
You explained very well, thanks
Can you tell me any site from where sat and act all the topics so
The "song" is simply the equation to the beat of Pop Goes the Weasel. My 10th/11th grade math teacher taught us it. Makes it easier to remember.
There is simple tip: if x1,x2 are roots of the equation ax^2+bx+c then the sum of the roots is -b/a and for the product it is c/a
if x1,x2,x3 are the roots of ax^3+bx^2+cx+d, the sum is -b/a, the sum of their pairwise products(x1x1+x2x3+x1x3) is c/a and the product is -d/a
What is the difference and divisor of them (alpha-beta) and (alpha/beta) ? Since we already know (alpha x beta) as -b/a and (alpha + beta) as c/a
Also a good tip for the second question, if they ask for product of zeros, you can do c/a
december 7th squad!!!
Mine Gramer heRE
im scared lol
Here. I just studied. Just now. Ggg
@@AngeliaVillar same... pray for me
GANG... so scared ngl
I reallly thank youuuuuuuu
Test day is tomorrow!! Been studying for 5 months!!!
bet you'll good excellent
Can you tell us how you do?
🤣🤣
Michal Lewis what was your score? :)
I’m in algebra 2 right now (I’m a freshman) so these are easy to me at the moment, but I just hope I remember all the algebra in a few years when I actually take the SAT 😅
Candy Floss Good job on preparing early. I was in Alg 2 in freshman year as well and now I’m a junior. I haven’t started preparing my SATs since probably last month
take it now tbh
OMG u guys are so lucky this is extremely easy compared to my country's exam I only have a month left and I'm really scared good luck .
The second one with 2m^2 -16m +8 when factored to m^2-8m+4 is in the form of a^2+b^2-2ab
I was interested to look at these type of math questions since i'm from the Caribbean wanting to do SAT's as well next year and i have to say i thought pure math (Basically calculus math in the Caribbean) was the hardest math subject but i was dead wrong after seeing this 💀(Pure maths is very similar to this as well but this still looks hard just like calculus)
My mom when I study too much and need to get out more 1:48
these were really easy!
for the sum of all values on that second example, you guys could also remember that if you make it into ax^2-bx-c where your a should be 1, your b is also negative sum of solutions and your c is the product of the solutions so you couldve solved it in two seconds by factoring out the 2 as she did and see that 8 was your negative sum, therefore since you have a double negative its just 8
i’m taking the sat math II tomorrow, i didn’t even know about the trick for #2...
Wow she practically uses collgate all-day
Thanks for the vid ....you are looking really pretty ❤️
these questions are so easy.
i take the SAT tomorrow. wish me luck please 😢😢😢
same
ME TOO
How was it?
Bianka Bodon the reading section i think i did pretty well on, i know i did well on the writing section, the non calculator part was the hardest because it kept asking questions about if “a” is a constant blah blah blah which i do not understand and the calculator section was the easiest section of them all. i think i got a 1170 or higher hopefully 😢
🤣🤣 if you think Sat maths is Hard then you are no match for Asian(Indian to be precise) students
II’m only in year four and I’m already learning tricks for my SATs
same
anyone taking it in december 7th
yesss me!!need prayers
Yesss
y’all gl tomorrow, I’m screwed
Good luck to everyone! I’m taking it as well!
Okay guys i finished the sat. I originally also chose to do the essay but opted out. Anyway i was primarily studying on khan academy and the sat collegeboard book. Khan academy to me makes the test seem harder than it is. The test quite easy with some challenging questions. I'll update you guys with my score on December 20th. (Btw this is my first time taking it)
5:34 answer= 8
a new way of solving quadratic
2m^2 -16m + 8=0
m^2 -8m +4 =0
B= 8/2 = 4
(B+z)(B-z)= C
B^2-z^2 =4
16-4 =z^2
12 = z^2
z = 3.4
solution then is 4-3.4=0.6 and 4+3.4 = 7.4
0.6 +7.4= 8
Wish me luck my dudes. Taking mine Aug 24th
How you do bro?
Good luck
There is a cool trick for the product of roots of a quadratic equation, which is c/a.
4:33 Lol luv u 🤣
It was great to know a simple method to solve a sum without using the quadratic formula
Oct 5, Chill mate
Is there curves during the summer SAT's?
One important tip : don’t overthink
for quadratic eq question remember
x^2-(sum of roots)x+product of roots=0
for standard quadratic eq ax^2+bx+c=0
comparing you get
sum of roots= -b/a
product of roots=c/a
just a little tip in quadratic
For question 13, I find it may be easier to approach the problem by factoring through completing the square. Then you can do some easy mental math to figure out which values of x will make the equation true for 0 = 0. :)
My favorite method is to use vieta's formulas though
if they ask you for the product in the sec question instead of -b/a do a/c
U mean c\a🤦♀️
for me, absolutely easy
Where can I find more information about "dropping the bases," like in the first problem?
Any algebra 2 textbook and many places online, I’m sure. It’s a very simple concept though - if you have an equation where the exponents on each side have the same base but a different power, then those powers must equal each other, so you can just set them equal to each other and “drop the bases.” For instance, if 2^3=2^x-1, then 3=x-1, and x=4. Hope that helps!
Honestly I don’t know what happened but I changed my studying tools for the SAT and my math score on practice tests has gone from mid 600s to higher than 700. On my most recent one I got a 790, so I hope I can replicate that on my SAT.
please say what did you change i want to get that too
@@thenepaliRizz I believe my highest math SAT score on a REAL test was 770. Basically I used college panda math SAT and I think that was it. This was a year ago, however, so my memory of it is a bit foggy. Hope this helps.
where are the SAT tests that you are referring to? I didn't see them on your website under resources
pretty easy question
2:21 answer = 8 since 16 is the same as 25-9 which is the same as 5^2- 3^2 or (5+3)(5-3), and 5+3=8
since a^2- b^2=16
Actually, if you want the product of the roots, it could be c/a
I am gonna take my SAT on november but i want to be prepare
@YSV Rao Thank you very much for the advice
@@rechelzapata5090 dont you thing taking it in november might be too long 🙎🙎🙎
@@ziaahmed9813 yes but i think is better so i can practice more.
@@rechelzapata5090 okk but if you want you can even go with august or october sat too.
Sighhh taking it tomorrow wish me luck 😭
great
Lmaoo I am going to take math II tomorrow
Yawning has been the best motivation
#rule even if you feel sleepy, don't give up
I think on the second question, you can applied the Vieftee formula. Then it will be 2 second question
4:13= 8 since 4+ or - 2 square root of 3 =8
8:45 you don't need the quadratic formula to derive vieta's formulas, i will show here (it works for all degrees of polynomials):
ax^n+bx^(n-1)...+q =0 where q is the constant.
if r_1, r_2,...,r_n are the roots, the original equation is factored as a(x-r_1)(x-r_2)...(x-r_n). this expands out into a(x^n-(r_1+r_2+...+r_n)x^(n-1)...). this expands further into ax^n-a(r_1+r_2+...+r_n)x^(n-1)...+q=0 so b=-a(sum of roots). the sum of the roots is therefore -b/a.
The product is derived similarly as +- (q/a). + if n is even, - if n is odd.
Even more interestingly, r_1*r_2 + r_2*r_3...+r_n*r_1 = c/a where c is the third term. r_1*r_2*r_3+r_2*r_3*r_4+... + r_n*r_1*r_2
= -d/a where d is the 4th term, etc.
also, it's called a discriminant, not a determinant. you use determinants in linear algebra.
(this is not a stupid formula.)
bruh
@@stainzzz7851 bruh
B2 -4ac is the discriminant not determinant right?
yes. the determinant is used for solving a system of multivariable equations with linear algebra.
wish me luck for dec 5 , 2020 sat
9:12
Sum of all values = -b/a
Product of all values = c/a
wHAT IS THE FORMULA IF IT IS THE DIFFERENCE OF ALL VALUES OF A QUADRATIC EQUATION?
Poh Shen Loh has a new method of solving quadratic (it is said to be easier than the -b+- students are accustomed to)
In the 1st question why isn't it x^2a/x^2b
I’m looking forward to the memes not the test
Answer =8 (1:27)
x^a^2- b^2 (the rule of exponent as x^y/x^n = x^y-n)
x^(a+b)(a-b) {factor a^2-b^2 which equals (a+b)(a-b)}
x^ 2(a-b) (substitute a+b = 2 given)
x^2a-2b = x^16
2a-2b=16
a- b = 8 (divide both sides by 2)
PS provided you know the quotient rule of exponent, can factor the difference of squares, (then you substitute a+b for 2), and then equate the exponent (such as if x^n+1= x^2, then set n+1=2, hence n=1) YOU will get it.
I took the square root of both sides when i got to a^2-b^2=16 so i got it wrong how do i know when not to manipulate both sides and use the rule?
Good luck to all my fellow 11th graders taking the SAT
For the last question: -b/a
Shouldn’t the 8 be negative because it’s negative b for the quad formula?
Gabby Vilchez b =-8 and if u plug it into (-b) you get (-(-8)) and the negative cancel out to make a positive
Why did you replace the (a+b) for 2?
bc they tell u a+b is 2
August 24 gang
20 minutes before my test center opens
A bit late but for the second one, isn't the sum of the roots -b/a
1:15 lol I think she said 12 at first
SAT IS TOMMOROWWWWW N
3:57 me too Brooke, me too:(
oh my god, these are harder than putnam questions :O
I have the sat in 2 years ahahaha
SAT for which standard...¿¿
for the second question just use -b/a
Completing the square for the second question is also an option
question 13 you dont need quadratic form, just factor once more to get m out, then u know m is 0. Then the other sol is 8, so the sum is just 8
the two roots are 4+2sqrt3 and 4-2sqrt3.
I wouldn’t mind her tutoring me
Miguel I want her teaching mee🥺🥺🥺🥺🥺🥺
im so screwed :(
Various belts
unlimited soap
I’m a 9th grader and scored 860 on the SAT
Someone please tell me if that’s bad or average for a 9th grader
My goal is to increase my sat by 200 points
That is a great place to start as a 9th grader. If I were you, I would study a little every day now instead of stressing over that perfect score when you're a senior like I am.
LETS PARY THE OCTO 5 TEST ISNT CURVED
meaaning?
When she yawned I felt that]
Scalar learning made up the song
March 14thhhhh‼️😂
Oct. 5th Gang Make Some Noise!!!
YESSIRRR
YAAAAY
gl march 14th gang!!!!
Here is a hard SAT algebra question
For a positive real number, x, where x^8 = 2, what is the value of x^24?
A) cube root of 24
B) 4
C) 6
D) 8
@andrewcalfa The right answer is D) 8. To isolate x in the first equation, we must take the 8th root of x on both sides, therefore x = 8th root of 2. We can rewrite x as 2^(1/8) . Now, we plug 2^(1/8) into the second equation. After plugging it in, it should look like this: ( 2 ^ (1 /8) ) ^ 24. This simplifies to 2^3 which is 8.
Raise both sides of the equation to the third power. (x^8)^3 = x^24 = 2^3 = 8. It is the "power of a power" rule in some texts. When a power is raised to another power, you multiply. 8*3=24.
Just use log
Anudeep Annangi D
@@Cyber-FrieGab The SAT doesn't test on logarithms. Also, this question was on Math No Calculator section.
Can anybody volunteer for teaching me SAT?