Question

Divide x cube +13 x square +32 x +20 by x+ 1

Answer 1

x^2(X+1) +12x(X+1) +20(X+1) = 0


➡ (X+1) (x^2 +12x +20) = 0

by divide you get

(X^2 +12x +20)


now factorise

➡ (X+1) (x^2 +10x +2x +20) = 0

➡ ( X+1) (X ( X +10) +2(X+10))

➡ (X+1) (X+2) (X+10)