(a+b)^2 does not equal a^2 + b^2

(a+b)^2 = (a + b)(a + b) = a^2 + b^2 + ab + ab

(ab)^2= (a^2)*(b^2)

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- May 30th 2012, 12:44 PM #1

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- May 30th 2012, 01:09 PM #2

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