abcd Quadratic Equations - Quadratic Formula(L2)
Quadratic Equations - Quadratic Formula(L2)


Practice

Solve for x.
a)    6x2 +7x−8 = 0
-7/12 ± 241/12

b)    9x2 −9x+1 = 0
1/2 ± 5/6

c)    -5x2 −6x+6 = 0
-3/5 ± 39/5

d)    1x2 +5x−7 = 0
-5/2 ± 53/2

e)    2x2 +3x−4 = 0
-3/4 ± 41/4

f)    5x2 −x−9 = 0
1/10 ± 181/10

g)    2x2 −4x−1 = 0
1 ± 6/2

h)    8x2 −4x−3 = 0
1/4 ± 7/4

i)    -3x2 +x+7 = 0
1/6 ± 85/6

j)    -6x2 −7x+1 = 0
-7/12 ± 73/12