" 19."9a^(2)+3a-8b-64b^(2)quad 20.x^(2)-y

factorize : 9a^2+3a-8b-64b^2

Factorise : 9a^(2) + 3a - 8b - 64b^(2)

Factorise the following : (i) 9a^(2)-b^(2) " " (ii) 81x^(3)-x " " (iii) x^(3)-49xy^(2) " " (iv) a^(2)-(b-c)^(2) (v) (x-y)^(3)-x+y " " (vi)x^(2)y^(2)+1-x^(2)-y^(2) " " (vii) 25(a+b)^(2)-49(a-b)^(2) " " (viii) xy^(5)-x^(5)y (ix) x^(8)-256 " " (x) x^(8)-81y^(8)

Factorise the following : (i) 9a^(2)-b^(2) " " (ii) 81x^(3)-x " " (iii) x^(3)-49xy^(2) " " (iv) a^(2)-(b-c)^(2) (v) (x-y)^(3)-x+y " " (vi)x^(2)y^(2)+1-x^(2)-y^(2) " " (vii) 25(a+b)^(2)-49(a-b)^(2) " " (viii) xy^(5)-x^(5)y (ix) x^(8)-256 " " (x) x^(8)-81y^(8)

Factorize: 9a^(2)-16b^(2)( ii) 36a^(2)-(x-y)^(3)80a^(2)-45b^(2)( iv) (3a-b)^(2)-9c^(2)

Factorize each of the following expressions: (2a-b)^(2)-16c^(2)(2)(x+2y)^(2)-4(2x-y)^(2)3a^(5)-48a^(3)(4)a^(4)16b^(4)x^(8)-1(6)64-(a+1)^(2)

If x=9 is the chord of contact of the hyperbola x^(2)-y^(2)=9 then the equation of the corresponding pair of tangents is (A)9x^(2)-8y^(2)+18x-9=0(B)9x^(2)-8y^(2)-18x+9=0(C)9x^(2)-8y^(2)-18x-9=0(D)9x^(^^)2-8y^(^^)2+18x+9=0'

Factorize : 64a^(3)+125b^(3)+240a^(2)b+300ab^(2)(8)/(27)x^(3)+1+(4)/(3)x^(2)+2xx^(3)+8y^(3)+6x^(2)y+12xy^(2)8a^(3)-27b^(3)-36a^(2)b+54ab^(2)x^(3)-12x(x-4)-64