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(3x – 4y)(3x + 4y) = 2

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Carcass

Verbal Expert

Joined: 18 Apr 2015

Posts: 18319

GRE 1: Q160 V160

(3x – 4y)(3x + 4y) = 2 [#permalink]

22 May 2017, 01:49

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Question Stats:

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19% (00:32) wrong

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The last collection of questions for the GRE Quant - 2019

$(3x – 4y)(3x + 4y) = 2$

Quantity A	Quantity B
$9x^2 – 16y^2$	$4$

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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GreenlightTestPrep

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Re: (3x – 4y)(3x + 4y) = 2 [#permalink]

22 May 2017, 07:04

Expert Reply

Carcass wrote:

This question is part of GREPrepClub - The Questions Vault Project

(3x – 4y)(3x + 4y) = 2

Quantity A	Quantity B
9x² – 16y²	4

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.

Given: (3x – 4y)(3x + 4y) = 2
Expand and simplify left side to get: 9x² – 16y² = 2

So, we have:
Quantity A: 2
Quantity B: 4

Answer: B
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mrr0821

Intern

Joined: 27 Nov 2014

Posts: 30

Re: (3x – 4y)(3x + 4y) = 2 [#permalink]

29 Sep 2018, 11:48

Easy one. B

akingba

Intern

Joined: 14 Jan 2019

Posts: 31

Re: (3x – 4y)(3x + 4y) = 2 [#permalink]

05 Feb 2019, 05:37

A: 9x² – 16y² = 2
B: 4

Answer is B

GREcrusher

Intern

Joined: 25 Aug 2019

Status:Trying to get rich every single day.

Affiliations: Me.

Posts: 21

Location: Netherlands

More precise location: Amsterdam

Re: (3x – 4y)(3x + 4y) = 2 [#permalink]

30 Sep 2019, 03:11

This question tests whether you know the "difference of squares" formula: a^2 - b^2 = (a+b)*(a-b)
No real traps in this question.
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gmatclubot

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