Question

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

-a^2-2 ab-b^2
a^2+2 ab+b^2
-a^2+2 ab+b^2
a^2-2 ab+b^2

Answer 1

I don't know if I'm right but, I think the answer is....

Explanation:

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

hope im right!!

Answer 2

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

Distribute

b(a+b) = ab + b²

-a(a-b) = -a² + ab

ab + b² - a² + ab

ab + ab + b² - a²

2ab + b² - a²

Arrange:

-a² + 2ab + b²