Practice
Solve for x.a) 9x2 +9x−9 = 0
-1/2 ± /2
-1/2 ± /2
b) -6x2 −3x+6 = 0
-1/4 ± /4
-1/4 ± /4
c) 9x2 −7x−5 = 0
7/18 ± /18
7/18 ± /18
d) -2x2 −9x+4 = 0
-9/4 ± /4
-9/4 ± /4
e) 5x2 −6x−7 = 0
3/5 ± 2/5
3/5 ± 2/5
f) -2x2 +6x−3 = 0
3/2 ± /2
3/2 ± /2
g) -2x2 +x+8 = 0
1/4 ± /4
1/4 ± /4
h) 1x2 +6x+4 = 0
-3 ±
-3 ±
i) 7x2 +x−4 = 0
-1/14 ± /14
-1/14 ± /14
j) -2x2 +2x+3 = 0
1/2 ± /2
1/2 ± /2
