1.	The roots of  x2 + 4x + 7 are________.
		A.	real and rational	B.	real and imaginary
		C.	imaginary	D.	real and irrational
		Hint
	2.	Solve  x2 - 6x + 25 = 0.
		A.	3 ± 4i	B.	-3 ± 4i
		C.	6 ± 8i	D.
		Hint
	3.	Suppose a ball is thrown straight up at a speed of 50 feet per second. The time in seconds that it takes for the ball to hit the ground can be found by solving the equation 5 + 50t - 16t2 = 0. Approximately how long does it take for the ball to hit the ground?
		A.	3.2 s	B.	4.8 s
		C.	0.1 s	D.	-0.1 s
		Hint
	4.	If a perfect square is equal to a constant, what is the best method to solve the quadratic equation?
		A.	Square Root Property	B.	Quadratic Formula
		C.	Factoring	D.	Completing the Square
		Hint
	5.	Solve by using the quadratic formula.
		A.		B.
		C.		D.
		Hint