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(x-1)(x+1)

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Carcass
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(x-1)(x+1) [#permalink] New post   12 Apr 2022, 02:00
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Question Stats:

100% (00:51) correct 0% (00:00) wrong based on 9 sessions

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Quantity A
Quantity B
\([x-1][x+1] \)
\([x+3][x-3]\)



A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given


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A
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AkkuJi
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Re: (x-1)(x+1) [#permalink] New post   12 Apr 2022, 11:53
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Option A: x+1 * x -1 ---> x^2 - 1
Option B: x+3 * x -3 ----> X^2 - 9

Remove x^2 from both the equations because they will both can be canceled out

-1 > -9, hence option A > option B

Ans is A
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gmatclubot
Re: (x-1)(x+1) [#permalink]
12 Apr 2022, 11:53
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