Determine whether the following statement is true for every real numbers x

and y:

(x + y)^2 = x^2 + y^2

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- December 12th 2006, 10:51 AMfancyfaceMath help, determine whether equation is true
Determine whether the following statement is true for every real numbers x

and y:

(x + y)^2 = x^2 + y^2 - December 12th 2006, 10:55 AMThePerfectHacker