1.	Simplify x3y0z-2.
		A.		B.
		C.	-x3yz2	D.	0
		Hint
	2.	Simplify . Assume the denominator is not equal to zero.
		A.		B.
		C.		D.
		Hint
	3.	Simplify . Assume the denominator is not equal to zero.
		A.		B.
		C.		D.
		Hint
	4.	Simplify . Assume the denominator is not equal to zero.
		A.		B.
		C.		D.	-b2
		Hint
	5.	Simplify Assume the denominator is not equal to zero.
		A.	5xy2	B.	5xy8
		C.		D.	1
		Hint