Must know SAT math hack 👀🤭 #digitalsat #satprep

[usmanchughtai]

B. Just ignore all the variables and solve for the integers. (11^2) + (5)(-5) gives you 96

[swastikdevata]

That's so smart! This saves so much time😮

[prodfulltime]

Plug the questions expression and all 4 answer choices into 5 different graphing lines on a calculator and see which line matches up with the first one

[basically_helen]

Btw there are actual formulas to calculate these...the SAT question is supposed to be solved with those, here it is solved using proper formulas:
(x²+11)²+(x-5)(x+5)
x⁴+2x²11+11²+x²-5²
x⁴+22x²+121+x²-25
x⁴+23x²-96
Btw here are the formulas:
(a+b)²=a²+2ab+b²
(a-b)(a+b)=a²-b²

[PRTSN]

I remember that on Saturday when taking the sat, I had a question that's similar to this one. The question came from Module One, btw.

[thedawapenjor]

Damn. They did us dirty with this one.

[frapcrap]

THIS IS NOT THE CORRECT WAY AT ALL
take the same question for ex (i will modify the options)
A)x^4+23x^2+96
B)x^4+93x^2+96
C)x^4+33x^2+96
D)x^4+53x^2+96
According to her way all the answers should be correct but only 1 of them is

[namelornot]

Will it also work if i give x some random number like 12 or 38?

[suyasheesh]

There can't be any negative terms so option A and option D get eliminated, the constant term cant be 121 cause that's just what we will get from the first term, the constant term from the second term will change 121 and thus option C gets eliminated
Hence, answer is option B

[MHFUman]

What I did was just instantly answered B then skipped around till the end. I Didn't expect it to be the answer

[maxhagenauer]

Not a good way to do it because thos will not always work for example it could have given something like x^4 + 3x^2 - 10x + 96 which if you set x = 0, it would give 96 which according to your way would be the correct anwser when it isn't. You are assuming all the terms with x's are exactly the same.

[Speedrun]

faster way: get rid of x
do 11^2=121
multiply 5 and -5=-25
121-25=96
choice B

[meiamor]

In my area, this is basically 8th grade math problems. I'd be surprised if it appears in my upcoming SAT.

[hassanawdi]

But be careful if multiple choices have same answer

[ithinkimnothere]

bruh isn't no way they give questions this easy in the SAT

[xavier]

But the real question is, how is it gonna help us in the real life?

[Catornado]

Because evaluating the actual expression is too difficult

[samdaman]

First of your videos that is actually good

[mkadx]

سويتها بس نسيت أنها سالب خمسة وحطيت 121+25=146 الخيارات ملغمة

[bearyweary]

I would like to not I did the first way and faster in my head(I need to know this is also not the best way it is just because I noticed there was a difference of two squares and it was so much faster for me. It would not work most of the time.)