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# If 4(-3x - 8) = 8(-x + 9), what is x^2?

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Math Expert
Joined: 02 Sep 2009
Posts: 56256
If 4(-3x - 8) = 8(-x + 9), what is x^2?  [#permalink]

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03 Jan 2019, 12:51
1
00:00

Difficulty:

15% (low)

Question Stats:

90% (01:36) correct 10% (01:29) wrong based on 42 sessions

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If $$4(-3x - 8) = 8(-x + 9)$$, what is $$x^2$$?

A. 729
B. 676
C. 625
D. 576
E. 529

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Joined: 31 Oct 2013
Posts: 1392
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Re: If 4(-3x - 8) = 8(-x + 9), what is x^2?  [#permalink]

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03 Jan 2019, 17:16
Bunuel wrote:
If $$4(-3x - 8) = 8(-x + 9)$$, what is $$x^2$$?

A. 729
B. 676
C. 625
D. 576
E. 529

$$4(-3x - 8) = 8(-x + 9)$$

-12x - 32 = -8x + 72

-4x = 104

x = -26

$$x^2 = (-26)^2$$

$$x^2 = 676.$$

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Joined: 04 Jan 2015
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If 4(-3x - 8) = 8(-x + 9), what is x^2?  [#permalink]

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04 Jan 2019, 03:26
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Joined: 18 Aug 2017
Posts: 4242
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
Re: If 4(-3x - 8) = 8(-x + 9), what is x^2?  [#permalink]

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06 Jan 2019, 06:11
Bunuel wrote:
If $$4(-3x - 8) = 8(-x + 9)$$, what is $$x^2$$?

A. 729
B. 676
C. 625
D. 576
E. 529

solve for x
we would get
x= 26
x2 = 676
IMO B
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Re: If 4(-3x - 8) = 8(-x + 9), what is x^2?   [#permalink] 06 Jan 2019, 06:11
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