Mathematical Connections: The composite solid is made up of a cube and a rectangular prism.


(Picture below)


a. Write a polynomial that represents the volume of the composite solid.


b. The volume of the composite solid is equal to 25x. What is the value of x? Explain your reasoning.

Mathematical Connections The composite solid is made up of a cube and a rectangular prismPicture belowa Write a polynomial that represents the volume of the com class=