If x and y are different integers and x2
= xy, which of the following must be
true?
â… . x = 0
â…¡. y = 0
â…¢. x = -y
(A) â… only
(B) â…¡only
(C) â…¢ only
(D) â… and â…¢ only
(E) â… ,â…¡and â…¢
OA IS A
must be true
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x² = xy implies x² - xy = 0 implies x(x - y) = 0, which means either x = 0 or x = y. But it is given that x and y are different integers, so x = y cannot be true. Hence, x = 0 holds true.grandh01 wrote:If x and y are different integers and x2
= xy, which of the following must be
true?
â… . x = 0
â…¡. y = 0
â…¢. x = -y
(A) â… only
(B) â…¡only
(C) â…¢ only
(D) â… and â…¢ only
(E) â… ,â…¡and â…¢
OA IS A
The correct answer is A.
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