गुणनखंड ज्ञात कीजिए :
`x^(3)-2x^(2)-x+2 " `

Answer

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