Factorise the following expressions. (a) `54m^3n + 81m^4n^2` (b) `15x^2y^3z + 25x^3y^2z + 35x^2y^2z^2`

Factorize the following polynomials 15y^(2)z^(3)-20y6(3)z^(4)+35y^(2)z^(2)

Factorize of the expression: a^(3)x+a^(2)(x-y)-a(y+z)-z

Using matrices, solve the following system of equations for x,y and z. 3x-2y+3z=8 , 2x+y-z=1 , 4x-3y+2z=4

Using matrices, solve the following system of equations for x,y and z. 2x+3y+3z=5 , x-2y+z=-4 , 3x-y-2z=3

Add the following: 3x+2y\ a n d\ x+y (ii) x+y+3\ a n d\ 3x+2y+5 2x+3y+z\ a n d\ 2x-y-z

x+y+z=1 x-2y+3z=2 5x-3y+z=3