1.	Simplify .
		A.		B.
		C.		D.
		Hint
	2.	Simplify .
		A.	16	B.
		C.		D.	4
		Hint
	3.	Find
		A.		B.
		C.		D.
		Hint
	4.	Simplify:
		A.	16	B.	no real roots
		C.	-16	D.
		Hint
	5.	Which of the following is not a condition of a radical expression in simplest form?
		A.	No radicals appear in the denominator of a fraction.
		B.	No radicands have perfect square factors other than 1.
		C.	No radicals appear in the numerator of a fraction.
		D.	No radicands contain fractions.
		Hint