निम्नलिखित के गुणनखण्ड कीजिए :
(i) `2x^(2)+9x+9` (ii) `2x^(2)+9x-5` (iii) `6x^(2)-x-15` (vi) `9x^(3)-30x^(2)-144x`
(v) `4-x-5x^(2)` (vi) `20-9x-20x^(2)` (vii) `7(a+b)^(2)+48(a+b)ab-7a^(2)b^(2)`
(viii) `7sqrt(2)x^(2)-10x-4sqrt(2)` (ix) `sqrt(2)x^(2)+3x+sqrt(2)` (x) `x^(4)-14x^(2)y^(2)-51y^(4)`
(xi) `26x^(2)+31xy-12y^(2)` (xii) `x^(2)+4sqrt(2)xy+6y^(2)`
`(x+4)^(2)-5xy-20y-6y^(2)` (xiv) `5-(3x^(2)-2x)(6-3x^(2)+2x)`
(xv) `18x^(2)+37xy-20y^(2)`

Answer

(i) `(2x+3)(x+3)` (ii) `(x+5)(2x-1)` (iii) `(3x-5)(2x+3)`
(iv) `3x(x-6)(3x+8)` (v) `(1+x)(4-5x)` (vi) `(4-5x)(5+4x)`
(vii) `(7a+7b-ab)(a+b+7ab)` (viii) `sqrt(2)(x-sqrt(2))(7x+2sqrt(2))` (ix) `(x+sqrt(2)y)(x+3sqrt(2)y)`
(xiii) `(x+y+4)(x-6y+4)` (xiv) `(x+1)(x-1)(3x+1)(3x-5)` (xv) `(9x-4y)(2x+5y)`