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