Practice
Solve for x.a) 9x2 +8x−8 = 0
-4/9 ± 2/9
-4/9 ± 2/9
b) -8x2 +x+6 = 0
1/16 ± /16
1/16 ± /16
c) 6x2 −9x−4 = 0
3/4 ± /12
3/4 ± /12
d) 9x2 +3x−5 = 0
-1/6 ± /6
-1/6 ± /6
e) 8x2 +2x−8 = 0
-1/8 ± /8
-1/8 ± /8
f) -4x2 −7x+9 = 0
-7/8 ± /8
-7/8 ± /8
g) -3x2 −8x+7 = 0
-4/3 ± /3
-4/3 ± /3
h) -7x2 −7x+4 = 0
-1/2 ± /14
-1/2 ± /14
i) -2x2 +3x+8 = 0
3/4 ± /4
3/4 ± /4
j) -3x2 +5x+4 = 0
5/6 ± /6
5/6 ± /6