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If x(2x + 1) = 0 and (x + 1/2)(2x - 3) = 0, then x =

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If x(2x + 1) = 0 and (x + 1/2)(2x - 3) = 0, then x = [#permalink] New post 07 Dec 2012, 06:30
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If x(2x + 1) = 0 and (x + 1/2)(2x - 3) = 0, then x =

(A) -3
(B) -1/2
(C) 0
(D) 1/2
(E) 3/2
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Re: If x(2x + 1) = 0 and (x + 1/2)(2x - 3) = 0, then x = [#permalink] New post 07 Dec 2012, 06:33
Walkabout wrote:
If x(2x + 1) = 0 and (x + 1/2)(2x - 3) = 0, then x =

(A) -3
(B) -1/2
(C) 0
(D) 1/2
(E) 3/2


x(2x + 1) = 0 --> x=0 OR x=-1/2;
(x + 1/2)(2x - 3) = 0 --> x=-1/2 OR x=3/2.

x=-1/2 satisfies both equations.

Answer: B.
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Re: If x(2x + 1) = 0 and (x + 1/2)(2x - 3) = 0, then x = [#permalink] New post 10 Dec 2012, 07:53
which is the level of the question? 500?600?tks
Re: If x(2x + 1) = 0 and (x + 1/2)(2x - 3) = 0, then x =   [#permalink] 10 Dec 2012, 07:53
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If x(2x + 1) = 0 and (x + 1/2)(2x - 3) = 0, then x =

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