Question

(x^2–x–4)multiplied by(x–5)

Answer 1

x³ -6x² +x +20

Explanation:

The distributive property is useful for making sure you have all of the partial products.

(x^2–x–4)(x–5) = x(x^2–x–4) -5(x^2–x–4)

= (x^3 -x^2 -4x) +(-5x^2 +5x +20)

= x^3 +(-1-5)x^2 +(-4+5)x +20

= x^3 -6x^2 +x +20