[" 2.Factorise the following expressions."],[[" (i) "7x-42," (ii) "6p-12q],[" (iv) "-16z+20z^(3)," (v) "20l^(2)m+30" alm "],[" (vi) "5x^(2)y-15xy^(2)," (vii) "10a^(2)],[" (viii) "-4a^(2)+4ab-4ca]]

Factorise the following expressions. 20l^2m + 30alm

Factorise the following expressions. (i) 7x - 42 (ii) 6p - 12q (iii) 7a^2 + 14a (iv) -16z + 20z^3 (v) 20l^2m + 30a l m (vi) 5x^2y - 15xy^2 (vii) 10a^2 - 15b^2 + 20c^2 (viii) -4a^2 + 4ab - 4ca (ix) x^2yz + xy^2z + xyz^2 (x) ax^2y + bxy^2 + cxyz

Factorise the following expressions. (i) 7x - 42 (ii) 6p - 12q (iii) 7a^2 + 14a (iv) -16z + 20z^3 (v) 20l^2m + 30a l m (vi) 5x^2y - 15xy^2 (vii) 10a^2 - 15b^2 + 20c^2 (viii) -4a2 + 4ab - 4ca (ix) x^2yz + xy^2z + xyz^2 (x) ax^2y + bxy^2 + cxyz

Factorise the following expressions: (i) x^(2) + 4x + 4 (ii) 3a^(2) -24ab+ 48b^(2) (iii) x^(5) -16x (iv) m^(2) +(1)/( m^(2)) -23 ( v) 6-216x^(2) (vi) a^(2) +(1)/( a^(2)) -18

Factorise the following expression: ( i) 4x^(2) +9y^(2) +25z^(2) +12xy +30yz + 20zx (ii) 25x^(2) +4y^(2) +9z^(2) -20 xy +12yz - 30zx

Factorise the expressions - 5x^(4) + 10x^(3)y + 15x^(2)Z

Do the following divisions. (i) -20x^4 -: 10x^2 (ii) 7x^2 y^2 z^2 -: 14xyz

Factorise : (iv) 5x^(2) - 4xy - 12y^(2)