Question

If X+y=x, show that (a+b)²= a²+2ab+b²​

Answer 1

a^2+2ab+b^2

Explanation:

(a+b)^2

(a+b)(a+b)

a(a+b)+b(a+b)

(a^2+ab)+(ab+b^2)

a^2+2ab+b^2