Question

What’s (2x-4)(6+5x) As a polynomial?

Answer 1

10x2-8x+4 would be the answer

Answer 2

10x² - 8x - 24

Explanation:

Given

(2x - 4)(6 + 5x)

Each term in the second factor is multiplied by each term in the first factor, that is

2x(6 + 5x) - 4(6 + 5x) ← distribute both parenthesis

= 12x + 10x² - 24 - 20x ← collect like terms

= 10x² - 8x - 24