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When will the expression the sum of the squares of two numbers'' and the square of the sum of two numbers'' have the same value?
Wiki User
∙ 11y ago
x2 + y2 = (x + y)2
=> x2 + y2 = x2 + 2xy + y2
=> 2xy = 0
=> xy = 0
So, one of x and y must be 0.
Wiki User
∙ 11y ago
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