Practice
Solve for x.a) 9x2 −7x−5 = 0
7/18 ± /18
7/18 ± /18
b) 9x2 +x−3 = 0
-1/18 ± /18
-1/18 ± /18
c) 9x2 +9x−3 = 0
-1/2 ± /6
-1/2 ± /6
d) 9x2 +x−2 = 0
-1/18 ± /18
-1/18 ± /18
e) -8x2 −9x+5 = 0
-9/16 ± /16
-9/16 ± /16
f) 3x2 +3x−4 = 0
-1/2 ± /6
-1/2 ± /6
g) -4x2 −5x+7 = 0
-5/8 ± /8
-5/8 ± /8
h) 6x2 +4x−1 = 0
-1/3 ± /6
-1/3 ± /6
i) -3x2 −6x+4 = 0
-1 ± /3
-1 ± /3
j) -6x2 −8x+5 = 0
-2/3 ± /6
-2/3 ± /6
