Question

What is the correct expansion of (2x+3) (2x^2-5)

Answer 1

4x^3 + 6x^2 -10x - 15

Explanation:

* means multiply

4x^3 + 6x^2 -10x - 15

2x * 2x^2 = 4x^3

2x * -5 = 10x

3 * 2x^2 = 6x^2

3 * -5 = -15

Answer 2

4x³ + 6x² - 10x - 15

Explanation:

(2x+3) (2x²-5)

4x³ - 10x + 6x² - 15

4x³ + 6x² - 10x - 15