गुणनखंड ज्ञात कीजिए -
(i) `x^3 -2x^2 -x+2` (ii) `x^3 -3x^(2) -9x-5`
(iii) `x^3 +13x^2 +32x+20`
(iv) `2y^3+y^2-2y-1`

Answer

(i) `(x-1)(x-2)(x+1)`
(ii) `(x+1)(x+5)(x+1)`
(iii) `(x+1)(x+10)(x+2)`
(iv) `(y-1)(y+1)(2y+1)`