Question

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

Answer 1

Answer:

Factorise: x3 + 13x2 + 32x + 20. · Asked by Topperlearning User | 4th Jun , · Let p(x) = x3 + 13x2 + 32x + 20. p(-1) = -1 p(-1) = -1 + 13 - 32 + 20 = -33 + 33 = Therefore (x + 1) is a factor of p(x). On dividing p(x) by (x + 1) we ...