(x-y)2 is a square so (x-y)2 >= 0
expanding, x2 - 2xy + y2 >= 0
so x2 + y2 >= 2xy or 2xy <= x2 + y2
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(A+B)2 = (A+B).(A+B) =A2+AB+BA+B2 =A2+2AB+ B2 So the Answer is A + B the whole square is equal to A square plus 2AB plus B square. Avinash.
8
it is equal to 6y plus y
22.5166605
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