Question

5. Factorise :
$(i) \: {x}^{3} \: - 2 {x}^{2} -x + 2 \\(ii) {x}^{3} - {3x}^{2} - 9x - 5 \\(iii) {x}^{3} + {13x}^{2} + 32x + 20 \\ (iv) {2y}^{3} + {y}^{2} - 2y - 1$
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Answer 1

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