Is xy + xz = 0?

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by Jay@ManhattanReview » Thu Aug 01, 2019 8:46 pm

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BTGmoderatorDC wrote:Is xy + xz = 0?

(1) x = 0
(2) y + z = 0

OA D

Source: GMAT Prep

From xy + xz = 0, we have x(y + z) = 0. So, if x = 0, the answer is yes; if (y + z) = 0, the answer is yes. So, each statement alone is sufficient.

The correct answer: D

Hope this helps!

-Jay
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