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OpenStudy (anonymous):
Give examples of two numbers a and b such that(a+b)^2=a^2+b^2 and explain why the equation is only true in those cases.
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OpenStudy (ddcamp):
(a + b)² = a² + 2ab + b² So when does a² + 2ab + b² = a² + b²?
OpenStudy (anonymous):
Can you explain more.
OpenStudy (ddcamp):
a² + 2ab + b² = a² + b² -(a² + b²) -(a² + b²) 2ab = 0 ab = 0 a = 0 or b = 0
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