# Math Help - Multiplying Monomials

1. ## Multiplying Monomials

The answer is $\pi x(x+2y)$

I am at a complete loss on how to solve this
help!

2. Originally Posted by iamanoobatmath

The answer is $\pi x(x+2y)$

I am at a complete loss on how to solve this
help!
The radius of the big circle is x + y. Therefore the area of the big circle = ......

The radius of the small circle is y. Therefore the area of the small circle = ......

Shaded region = area of big circle - area of small circle = ....