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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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\(3x^2 − 27 = 0\)


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:
\(3x^2 − 27 = 0\)


Quantity A
Quantity B
the positive value of x
3

[/textarea]
[/b]


Given: \(3x^2 − 27 = 0\)
Factor: \(3(x^2 − 9) = 0\)
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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