Question

factorise x^3+13x^2+132x+ 120​

Answer 1

Answer:

How to solve your problem

Answer 2

Answer:

Step-by-step explanation:

X³+13x²+132x+120

X³+x²+12x²+12x+120x+120

X²(x+1)+12x(x+1)+120(x+1)=0

(X+1)(x²+12x+120)=0

X+1=0

X²+12x+120=0

So x= -1