Please HELP! Find the volume of a rectangle prism is the length is 3x^2 , the width is 2x and the height is x^2+3x+5. Use the formula V=I times w times h, where l is length, w is width and h is height

Answer:
See below.
Step-by-step explanation:
(3x^2)(2x)(x^2+3x+5)
Multiple first 2 terms
(6x^3)(x^2+3x+5)
= 6x^5+18x^4+30x^3
When multiplying variables, you just need to add them