Practice
Solve for x.a) 6x2 +7x−8 = 0
-7/12 ± /12
-7/12 ± /12
b) 9x2 −9x+1 = 0
1/2 ± /6
1/2 ± /6
c) -5x2 −6x+6 = 0
-3/5 ± /5
-3/5 ± /5
d) 1x2 +5x−7 = 0
-5/2 ± /2
-5/2 ± /2
e) 2x2 +3x−4 = 0
-3/4 ± /4
-3/4 ± /4
f) 5x2 −x−9 = 0
1/10 ± /10
1/10 ± /10
g) 2x2 −4x−1 = 0
1 ± /2
1 ± /2
h) 8x2 −4x−3 = 0
1/4 ± /4
1/4 ± /4
i) -3x2 +x+7 = 0
1/6 ± /6
1/6 ± /6
j) -6x2 −7x+1 = 0
-7/12 ± /12
-7/12 ± /12
