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X is different from zero
[#permalink]
15 May 2018, 16:08
15 May 2018, 16:08
Expert Reply
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Question Stats:
84% (00:29) correct
15% (00:27) wrong based on 76 sessions
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\(x \neq 0\)
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
\(3x^2\) |
\((3x)^2\) |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
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Re: X is different from zero
[#permalink]
22 May 2018, 07:10
22 May 2018, 07:10
1
Carcass wrote:
\(x \neq 0\)
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
\(3x^2\) |
\((3x)^2\) |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
We can solve this question using matching operations
Given:
Quantity A: 3x²
Quantity B: (3x)²
Simplify Quantity B to get:
Quantity A: 3x²
Quantity B: 9x²
Since x² must be POSITIVE, we can safely divide both quantities by x² to get:
Quantity A: 3
Quantity B: 9
Answer: B
Cheers,
Brent
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Re: X is different from zero [#permalink]
22 May 2018, 07:10
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