(a - b)2 = a2 + b2 - 2ab
let value of a = 5 and b = 3 then we get
(a-b)2 = (5-3)2 = (2)2 = 4
a2 + b2 -2ab = 52 + 32 - 2(5 x 3)
=25 + 9 - 30
= 34 - 30
= 4
Therefore LHS = RHS
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