Question

21. Factorise: x3 + 13x2 + 32x + 20
​

Answer 1

Step-by-step explanation:

x3 + 13x2 + 32x + 20

x3 + x2 + 12x2 + 12x + 20x +20

x2(x+) + 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) ans.

Answer 2

Answer:

The value of x3 +13x2 +32x+20 is

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)

hope it help u

plz mark as brainliest