Fasssssssssssssssssst!What is a-b-c whole square?
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a^2 + b^2 + c^2 - 2ab + 2bc - 2ac
mysticd:
+2bc plz edit
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(a - b - c)2 = a2 + b2 + c2 – 2ab + 2bc – 2ca
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