Respuesta :

Use the FOIL method

(7x³ + 4x)(x² + 2)

7x³(x²) = 7x^5
7x³(2) = 14x³
4x(x²) = 4x³
4x(2) = 8x

7x^5 + 14x³ + 4x³ + 8x

simplify, combine like terms

14x³ + 4x³ = 18x³

7x^5 + 18x³ + 8x is your answer, or D

hope this helps

Louli
Answer:
7x⁵ + 18x³ + 8x

Explanation:
Before we begin, remember the following:
xᵃ * xᵇ = xᵃ⁺ᵇ

Now, for the given:
To solve this question, we will multiply each term from the first bracket by each term from the second bracket and then combine like terms to get the final expression.

This can be done as follows:
(7x³ + 4x)(x² + 2)
7x³(x²) + 7x³(2) + 4x(x²) + 4x(2)
7x⁵ + 14x³ + 4x³ + 8x
7x⁵ + 18x³ + 8x

Hope this helps :)