Factorise:(i) x3-2x2-x+2(iii) x3 + 13x2 + 32x + 20 – InterviewSolution

InterviewSolution

1.	Factorise:(i) x3-2x2-x+2(iii) x3 + 13x2 + 32x + 20
Answer» 1) x^3 - 2x^2 - x +2= x^2 (x-2) - 1(x-2)= (x^2 - 1)(x-2)= (x+1)(x-1)(x-2)

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