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If A = 2x (y 2c) and B = (2x y) 2c, then A B =

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Carcass
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If A = 2x (y 2c) and B = (2x y) 2c, then A B = [#permalink] New post   06 May 2022, 08:36
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If \(A = 2x − (y − 2c)\) and \(B = (2x − y) − 2c\), then \(A − B =\)

A. −2y
B. −4c
C. 0
D. 2y
E. 4c


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E
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Re: If A = 2x (y 2c) and B = (2x y) 2c, then A B = [#permalink] New post   06 May 2022, 08:44
Carcass wrote:
If \(A = 2x − (y − 2c)\) and \(B = (2x − y) − 2c\), then \(A − B =\)

A. −2y
B. −4c
C. 0
D. 2y
E. 4c




Let's begin by simplifying \(A\) and \(B\).
\(A = 2x − (y − 2c) = 2x − y + 2c\)
\(B = (2x − y) − 2c = 2x − y − 2c\)

Substitute values to get: \(A − B = (2x − y + 2c) - (2x − y − 2c) = 2x − y + 2c - 2x + y + 2c = 4c\)

Answer: E
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gmatclubot
Re: If A = 2x (y 2c) and B = (2x y) 2c, then A B = [#permalink]
06 May 2022, 08:44
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