Question

Simplify the following expression.

Answer 1

13x^3 - 13x^2 + 15x

Explanation:

Combine Like Terms

Consider terms that share the same variable and exponents, then apply the operation to those terms respectively.

Ex: Out of the subtrahend and the minuend, positive 8x and -7x are like terms. They can be combined to reach a difference of 15x.

Answer 2

Explanation:

5x^3+8x-8x^2-5x^2+8x^3+7x

14x^3-14x^2+15x