Amanufacturer of shipping boxes has a box shaped like a cube. the side length is
(5a + 4b). what is the volume of the box in terms of a and b? show your work.

 The volume of a cube with side length equal to x, is , 

thus, the volume of a cube shaped box, whose side length is (5a+4b) is :

,

The volume is already expressed in terms of a and b, but we can expand the expression , as follows:











,

or