Question

Simplify b(a + b) - a(a - b).

Answer 1

Answer: - a2 + 2 ab + b2

Answer 2

Simplify

b (a+b)−a(a−b)

Simplify each term

b a+b2−a2+ab

add

b a yab

.

b2−a2+2ab

Move

b 2.

− a2+2ab+b2 <- answer