Question

The width of a rectangular box is x, the length is 3x and the height is (3x-1) inches. Write a polynomial expression in standard form that represents the volume of the box

Answer 1

V = W×L×H

V = x(3x)(3x-1) = 3x²(3x-1) = 9x³-3x²

Answer: 9x³-3x²

Answer 2

9x^3 -3x^2

Explanation:

V = l*w*h

=x *3x*(3x-1)

=3x^2 (3x-1)

Distribute

= 9x^3 -3x^2