Question

The product of a binomial and a trinomial is x 3 + 3 x 2 − x + 2 x 2 + 6 x − 2. Which expression is equivalent to this product after it has been fully simplified?

Answer 1

x³ + 5x² + 5x - 2

Explanation:

Combine like terms.

x³ + 3x² − x + 2x² + 6x − 2 =

= x³ + 5x² + 5x - 2