If a^4+a^2 b^2 + b^4 = 8 and a^2 + ab + b^2 = 4, then the value of ab is

(A) -1 (B) 0 (C) 2 (D) 1

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- Jun 16th 2013, 04:12 AM #1

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- Jun 16th 2013, 05:18 AM #2

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## Re: Algberic question

- Jun 16th 2013, 05:38 AM #3

- Jun 16th 2013, 08:39 AM #4

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