Mathematics

Mathematics

Problem

5. Factorise : (i) x3−2x2−x+2x^{3}-2 x^{2}-x+2 (ii) x3−3x2−9x−5x^{3}-3 x^{2}-9 x-5 (iii) x3+13x2+32x+20x^{3}+13 x^{2}+32 x+20 (iv) 2y3+y2−2y−12 y^{3}+y^{2}-2 y-1 (i) x3−2x2−x+2x^{3}-2 x^{2}-x+2 (ii) x3−3x2−9x−5x^{3}-3 x^{2}-9 x-5 (iii) x3+13x2+32x+20x^{3}+13 x^{2}+32 x+20 (iv) 2y3+y2−2y−12 y^{3}+y^{2}-2 y-1

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