1.	Factor x2 – 16.
		A.	(x + 2)(x – 8)	B.	(x – 4)(x – 4)
		C.	(x + 4)(x + 4)	D.	(x + 4)(x – 4)
		Hint
	2.	Which of the following trinomials is a perfect square trinomial?
		A.	9a2 - 12a + 4
		B.	r2 - 6r + 36
		C.	x2 + 16x + 16
		D.	4y2 + 10y + 25
		Hint
	3.	Solve 5x2 – 10x = 0.
		A.	x = 0 or x = 2	B.	x = 0 or x = -2
		C.	x = 2	D.	x = 0
		Hint
	4.	Solve a2 – 12a = -27.
		A.	a = 3	B.	a = 9
		C.	a = 3 or a = 9	D.	a = -27 or a = -15
		Hint
	5.	Rewrite the expression as a product of two binomials.x2 – x – 56
		A.	(x + 7)(x – 8)
		B.	(x – 7)(x – 8)
		C.	(x + 7)(x + 8)
		D.	(x – 7)(x + 8)
		Hint