1.	Find the value of c that makes x2 + 16x + c a perfect square.
		A.	16	B.	-64
		C.	64	D.	8
		Hint
	2.	Find the value of b that makes x2 + bx + 36 a perfect square.
		A.	-12, 12	B.	324
		C.	12	D.	6
		Hint
	3.	Solve x2 - 4x + 1 = 0 by completing the square.
		A.	1, 3	B.
		C.		D.
		Hint
	4.	Solve a2 - a - 20 = 0 by completing the square.
		A.	-4, 5	B.
		C.	-5, 4	D.
		Hint
	5.	Find the solutions of the equation.(x – 2) 2 – 1 = 3
		A.	x = –4 and x = –4
		B.	x = 0 and x = 4
		C.	x = 0 and x = –4
		D.	x = 4 and x = –4
		Hint