1.	Factor x2 – 16.
		A.	(x + 4)(x – 4)	B.	(x + 4)(x + 4)
		C.	(x – 4)(x – 4)	D.	(x + 2)(x – 8)
		Hint
	2.	Factor 4y2 – 9.
		A.	prime	B.	(2y + 3)(2y + 3)
		C.	(2y + 3)(2y – 3)	D.	(2y – 3)(2y – 3)
		Hint
	3.	Which of the following trinomials is a perfect square trinomial?
		A.	4y2 + 10y + 25
		B.	x2 + 16x + 16
		C.	9a2 - 12a + 4
		D.	r2 - 6r + 36
		Hint
	4.	Factor x2 – 8x + 16.
		A.	(x - 4)2	B.	(x + 4)(x – 4)
		C.	(x - 8)2	D.	(x + 4)2
		Hint
	5.	Factor
		A.		B.
		C.		D.
		Hint