1.	The roots of the equation x2 - 8x - 20 = 0 are ____.
		A.	-2 and -10	B.	-2 and 10
		C.	2 and -10	D.	2 and 10
		Hint
	2.	If you solve 2m2 + 8m + 1 = 0 by completing the square, first divide each side of the equation by ____.
		A.	8	B.	2
		C.	1	D.
		Hint
	3.	The equation x2 + x - 1 = 0 cannot be solved by ____.
		A.	using the quadratic formula	B.	factoring
		C.	completing the square	D.	graphing
		Hint
	4.	Solve the equation 2x2 -x + 4 = 0 by any method.
		A.	i	B.	i
		C.	i	D.	1 i
		Hint
	5.	Find the discriminant of x2 - 2x + 20 = 0.
		A.	-72	B.	72
		C.	-76	D.	76
		Hint