1.	Find the value of c that makes x2 + 16x + c a perfect square.
		A.	64	B.	8
		C.	-64	D.	16
		Hint
	2.	Solve a2 - a - 20 = 0 by completing the square.
		A.	-5, 4	B.	-4, 5
		C.		D.
		Hint
	3.	Solve 2z2 + z - 4 = 0 by completing the square.
		A.		B.
		C.		D.	-2, 1
		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, 17}	B.	{–1, 13}
		C.	{1, 17}	D.	{1, 13}
		Hint