Question

answer in standard form and contain only positive(x+2) (2x^2-x-9)

Answer 1

(x+2) (2x^2-x-9)​

Apply distributive property:

x(2x^2)+x (-x) + x (-9) + 2 (2x^2) + 2 (-x) + 2 (-9)

2x^3 - x^2 - 9x + 4x^2 - 2x - 18

Combine like terms:

2x^3 -x ^2 + 4x^2 - 9x -2x -18

2x^3 + 3x^2 - 11x - 18