Question

Factorise x³+13x²+32x+20

Answer 1

First use hit and trial to find one factor.
at x=-1,eqn becomes zero
so -1 is one of the factors.

divide the eqn by x+1.
im sure u will get the answer.
let me knw in case of any doubt.

Answer 2

x³+13x²+32x+20

x³+13x²+32x+20=0

if we put x= -2 the equation gets satisfied

therefore dividing x³+13x²+32x+20 by x+2

we get x^2+11x+10

therefore factors are (x+2)(x+1)(x+10)