Question: Prove that ab = 1 4 [(a + b) 2 (a b) 2 ] Given 702 = 4900 and 362 = 1296, calculate 53 17.

Prove that ab = 1 4 [(a + b) 2 (a b) 2 ] Given 702 = 4900 and 362 = 1296, calculate 53 17. Show that (a + b + c) 2 = a2 + b2 + c2 + 2ab + 2bc + 2ca

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