Question

what is the formula of a square + b square​

Answer 1

(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.

Answer 2

(a+b)whole square = a^2+b^2+2ab

hope it will help u.