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3x2 - 27 = 0

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Carcass
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3x2 - 27 = 0 [#permalink] New post   11 Jul 2022, 03:35
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A
B
C
D

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3x2−27=0


Quantity A
Quantity B
the positive value of 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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C
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GreenlightTestPrep
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Re: 3x2 - 27 = 0 [#permalink] New post   11 Jul 2022, 06:49
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Carcass wrote:
3x2−27=0


Quantity A
Quantity B
the positive value of x
3

[/textarea]
[/b]


Given: 3x2−27=0
Factor: 3(x2−9)=0
Factor more: 3(x+3)(x−3)=0
So, EITHER x+3=0 OR x−3=0, which means x=−3 OR x=3

We get:
QUANTITY A: 3
QUANTITY B: 3

Answer: C
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gmatclubot
Re: 3x2 - 27 = 0 [#permalink]
11 Jul 2022, 06:49
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