Question

Find volume of figure in terms of x

Answer 1

6x^3+3x^2

Explanation:

Volume is b*h*w.

So, we have (3x)(x)(2x+1).

Simplifying the parentheses, we get: 3x*x*(2x+1).

3x*x= 3x^2.

Now we can simplify the other parentheses.

3x^2(2x+1) will be 6x^3+3x^2, because (3x^2)(2x)+(3x^2)(1).

Thus, we get 6x^3+3x^2