# A rectangular prism's height is #x+1#. its volume is #x^3+7x^2+15x+9#. If height and width of the prism are equal, what is its width?

##### 1 Answer

Jan 3, 2017

Width of the prism is

#### Explanation:

As the volume of a rectangular prism, whose length is

As the volume of rectangular prism is

and height is

we can have its length by dividing

Dividing

But as volume is

which is possible if

Hence width is

Note that volume is

and length is