First, factor each expression by finding two terms whose product is equal to the c term and sum is equal to the b term.
x^2-x+6 --> (x-3)(x+2)
x^2-4 --> (x+2) (x-2)
Next, cancel the terms that are equal on the top and bottom.
You are left with the answer of: [tex]\frac{x-3}{x-2}[/tex]
Hope this helps!!
