Question

(a²+b²+2ab) - (a²+b²-2ab)
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Answer 1

Answer:

A ^ 2 - B ^ 2 = A ^ 2 + 2AB + B ^ 2;

=>A^ 2 -B^ 2 -A^ 2 -2AB-B^ 2 =0; Rightarrow-2B^ 2 -2AB=0=-2B(B+A)=0; =>B(B+A)= 0 2 =>B(B+A)=0;

=>B=0 or B + A = 0;

=>B=0 or B = - A