Calculate the result of the expression $(7y^2 + 12y + 3) − (4y^2 + 3y − 5)$ . Which of the following expressions represents the result of this subtraction?

Correct answer marked below

3y^2 + 9y + 8

Correct

3y^2 + 9y − 2

3y^2 + 15y + 8

3y^2 + 15y − 2

11y^2 + 9y + 8

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Explanation

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Official Explanation

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[m](7y^2 + 12y + 3) − (4y^2 + 3y − 5) = (7y^2 + 12y + 3) − 4y^2 − 3y + 5 = (7y^2 −…

Comments

FfJul 27, 2024

thanks!

AmlanSep 25, 2024

thank you taking time to upload it!

JinsolSep 20

thanks, easy one. just watch the minus in front of the second set of parentheses.

RoccoSep 21

yeah the -5 turning into +5 tripped me for a sec lol

VishalAug 18

why is (C) even there? the 15y only happens if you add the y terms instead of subtracting

ChiragMay 19

solid warmup question, good to shake off the rust before a harder set

What this question tests

Your command of divisibility, primes, factors, parity, and how the GMAT tests properties of integers.

Forgetting that 1 is not prime, that 0 is divisible by every integer, or that negative numbers flip your assumptions.