Factorize each of the following expressions: `a x y+b c x y-a z-b c z` (2) `l m^2-m n^2-l m+n^2` (3)`x^3-y^2+x-x^2y^2` (4) `6x y+6-9y-4x`

Factorize each of the following algebraic expressions: x(x+z)-y(y+z)( ii) a^(2)-b^(2)-a-b

Factorize each of the following expressions: 36 l^2-(m+n)^2 (2) 25 x^4y^4-1 (3) a^4-1/(b^4) (4) x^3-144 x

Factorize each of the following expressions: x a^2+x b^2-y a^2-y b^2 (2) x^2+x y a+x z+y z (3) 2a x+b x+2a y+b y (4) a b-b y-a y+y^2

Factorize each of the following algebraic expressions: (1) (x-y)^2+(x-y) (2) 6(a+2b)-4(a+2b)^2 (3) a(x-y)+2b(y-x)+c(x-y)^2 (4) -4\ (x-2y)^2+8(x-2y)

Factorize each of the following algebraic expressions: (1) 5(x-2y)^2+3(x-2y) (2) 16(2l-3m)^2-12(3m-2l) (3) 3a(x-2y)-b(x-2y) (4) a^2(x+y)+b^2(x+y)+c^2(x+y)

Factorize each of the following algebraic expressions: (x-y)^(2)+(x-y)6(a+2b)-4(a+2b)^(2)a(x-y)+2b(y-x)+c(x-y)^(2)-4(x-2y)^(2)+8(x-2y)

Factorize the following : (i) 28 a^2+14 a^2b^2-21 a^4 (ii) a^4b-3a^2b^2-6a b^3 (iii) 2l^2m n-3l m^2n+4l m n^2 (iv) x^4y^2-x^2y^4-x^4y^4

Factorize the following : (1) 9x^2y+3a x y (2) 16 m-4m^2 (3) -4a^2+4a b-4c a (4) x^2y z+x y^2z+x y z^2 (5) a x^2y+b x y^2+c x y z

Factorize each of the following algebraic expressions: 6x(2x-y)7y(2x-y)2r(y-x)+s(x-y)7a(2x-3)+3b(2x-3)9a(6a-5b)-12a^(2)(6a-5b)

Evaluate each of the following algebraic expressions for x=1,\ y=-1, z=2,\ a=-2,\ b=1,\ c=-2: (i) a x+b y+c z (ii) a x^2+b y^2-c z^2 (iii) a x y+b y z+c x y