Factorise x³+13x²+32x+20.
Factorise the given expression:
The given expression is
x³+13x²+32x+20=x³+x²+12x²+12x+20x+20=x²(x+1)+12x(x+1)+20(x+1)=(x+1)(x²+12x+20)=(x+1)(x²+10x+2x+20)=(x+1)[x(x+10)+2(x+10)]=(x+1)(x+2)(x+10)
Hence, the answer is x+1x+2x+10
factorise x^3-13x^2-32x-20