1.

Factorise (i) x ^(2) - 2x ^(2) - x +2 (ii) x ^(3) - 3x ^(2) - 9x -5 (iii)x ^(3) + 13 x ^(2) + 32 x + 20 (iv)y ^(3) + y ^(2) -y -1

Answer»


ANSWER :(i) ` (X -1) (x +1) (x-2)`
(ii) `(x +1) ^(2) (x-5)`
(iii) ` (x +1) (x+2) (x+10)`
(IV) `(y+1) (y+1) (y-1)`


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