Question

Multiply.

(x + 7)(3x - 2)
O A. 3x2 – 23x - 14
O B. 3x2 – 2x - 14
O C. 3x2 + 21x - 14
O D. 3x2 + 19x - 14

Answer 1

D. 3x² + 19x - 14

Explanation:

Use FOIL to find the answer.

First: x * 3x = 3x²

Outer: -2 * x = -2x

Inner: 3x * 7 = 21x

Last: 7 * -2 = -14

Form the equation:

3x² - 2x + 21x - 14

Combine like terms.

3x² + 19x - 14