Having TROUBLE with prism and length

Question

A rectangular prism has a length of x+3,an width of 2x+1, and height if 5x.write an expression to represent the volume of the prism hint v=(l)(w)(h) be sure to simplify

Answer 1

Since V = LWH, just multiply (x + 3)(2x + 1)(5x)

You can use FOIL to multiply the two binomials together, and then multiply that product by 5x. The product of the two binomials will be a trinomial.