8)
3x - 6
-----------
x - 2
3(x - 2)
= -----------
x - 2
= 3
excluded value is 2
x cannot equal 2
9)
x - 2
---------------------
x^2 + 3x - 10
x - 2
= ---------------------
(x - 2)(x +5)
1
= --------
x +5
excluded values are 2 and -5
x cannot equal 2 and -5
