Simplify this fraction as far as possible
x^2+ 5x -6/ x^2 + 2x - 3

Find the remainder when the following is divided by (x-2).
5x^3 - 3x^2 + 3x -7

Show that (x + 2) is a factor of the following. and fully factorise f (x).
f (x) = x^3 + 2x^2 - x - 2