If |x| + |y| = -x - y and xy does not equal 0, which of the following must be true?
x + y > 0
x + y < 0
x - y > 0
x - y < 0
x2 - y2 > 0
|x| + |y| = -x - y im confused as what numbers satisfy this equation! plz assist!
how to make this equation true??
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opz sorry about that here is the question
|X|+|y| = - X - Y and xy does not equal 0, which of the following must be true?
x + y > 0
x + y < 0
x - y > 0
x - y < 0
x2 - y2 > 0
|X|+|y| = - X - Y and xy does not equal 0, which of the following must be true?
x + y > 0
x + y < 0
x - y > 0
x - y < 0
x2 - y2 > 0
i got utterly defeated by the gmat.