Question

Find the product (x - 5)(2x2 – X + 4).

A
2x3 - 11x2 + 9x - 20
B
2x3 + 9x2 - 11x + 20
С
2x3 + 11x2 - 9x + 20
D
2x3 - 11x2 - 9x - 20

Answer 1

The answer is A

Explanation:

1st step: x(2x^2-x+4) -5(2x^2-x+4)

2nd step: (2x^3-x^2+4x) (-10x^2+5x-20)

3rd step: combine like terms 2x^3-11x^2+9x-20