Factorise : (i) \( x^{3}-2 x^{2}-x+2 \) (ii) \( x^{3}-3 x^{2}-9 x-5 \) (iii) \( x^{3}+13 x^{2}+3...

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