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I don't understand how sqrt((-sqrt(7)-sqrt(3))^2 + (sqrt(2) - (-sqrt(3)))^2 equals sqrt(15+2sqrt(21) +2sqrt(6) I don't know the steps to get from the first problem to the answer. So If the steps can be explained or demonstrated to me better?
Guest Feb 8, 2012
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You forgot one ')', please correct it and ill try to explain ( there are 4 ('s and three )'s)

Ehrlich  Mar 26, 2017

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