1.	Find
		A.		B.	x - 2
		C.	x2 - 5x + 6	D.
		Hint
	2.	Simplify
		A.		B.
		C.		D.
		Hint
	3.	For what value(s) of x is undefined?
		A.	7, –1	B.	6, 7
		C.	–1	D.	6
		Hint
	4.	Simplify the expression .
		A.		B.
		C.		D.
		Hint
	5.	Simplify .
		A.		B.
		C.		D.
		Hint