1.	Find the value of c that makes x2 + 16x + c a perfect square.
		A.	8	B.	64
		C.	16	D.	-64
		Hint
	2.	Solve x2 - 4x + 1 = 0 by completing the square.
		A.		B.
		C.		D.	1, 3
		Hint
	3.	Solve a2 - a - 20 = 0 by completing the square.
		A.		B.	-5, 4
		C.		D.	-4, 5
		Hint
	4.	Solve x2 – 8x + 16 = 13 by taking the square root of each side.
		A.	4	B.	2
		C.	-2	D.	-4
		Hint
	5.	Solve x2 – 16x – 17 = 0 by completing the square.
		A.	{–1, 13}	B.	{1, 13}
		C.	{–1, 17}	D.	{1, 17}
		Hint