1.	Factor 4y2 – 9.
		A.	(2y + 3)(2y + 3)	B.	(2y – 3)(2y – 3)
		C.	prime	D.	(2y + 3)(2y – 3)
		Hint
	2.	Factor r4 – 81.
		A.	(r2 + 9)(r2 + 9)	B.	prime
		C.	(r + 3)2(r + 3)2	D.	(r2 + 9)(r + 3)(r - 3)
		Hint
	3.	Factor
		A.		B.	prime
		C.		D.
		Hint
	4.	Factor 3x3 + 3x2 – 12x – 12.
		A.	3(x – 2)(x + 2)(x + 1)	B.	(x – 2)(x + 2)(x + 1)
		C.	3(x – 2)(x – 2)(x + 1)	D.	(x – 2)(x – 2)(x + 1)
		Hint
	5.	Suppose that we have a 3 ft. × 3 ft. piece of paper, and we cut out a square piece so that the area of the remaining piece is 5 feet. What is the length of a side of the square?
		A.		B.	4 ft.
		C.		D.	2 ft.
		Hint