Factorise: (i) x3−2x2−x+2(ii) x3−3x2−9x−5(iii) x3+13x2+32x+20(iv) 2y3+y2−2y−1

Factorise: (i) x3−2x2−x+2(ii) x3−3x2−9x−5(iii) x3+13x2+32x+2

1.	Factorise: (i) x3−2x2−x+2(ii) x3−3x2−9x−5(iii) x3+13x2+32x+20(iv) 2y3+y2−2y−1
Answer» Factorise: $(i) x^{3} - 2 x^{2} - x + 2$ $(i i) x^{3} - 3 x^{2} - 9 x - 5$ $(i i i) x^{3} + 13 x^{2} + 32 x + 20$ $(i v) 2 y^{3} + y^{2} - 2 y - 1$