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What is the value of 5x2 + 4x 1? (1) x(x + 2)= 0 (2) x= 0

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What is the value of 5x2 + 4x 1? (1) x(x + 2)= 0 (2) x= 0 [#permalink] New post 12 Mar 2008, 12:12
What is the value of 5x2 + 4x – 1?
(1) x(x + 2)= 0
(2) x= 0
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Re: gprep second degree equations [#permalink] New post 12 Mar 2008, 17:49
marcodonzelli wrote:
What is the value of 5x^2 + 4x – 1?
(1) x(x + 2)= 0
(2) x= 0


1: x is 0 or -2. nsf.
2: x = 0 is suff.
so B.
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Re: gprep second degree equations   [#permalink] 12 Mar 2008, 17:49
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What is the value of 5x2 + 4x 1? (1) x(x + 2)= 0 (2) x= 0

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