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


Practice

Solve for x.
a)    8x2 −9x−6 = 0
9/16 ± 273/16

b)    -9x2 +2x+5 = 0
1/9 ± 46/9

c)    -1x2 +9x−5 = 0
9/2 ± 61/2

d)    3x2 +3x−7 = 0
-1/2 ± 93/6

e)    3x2 −8x−7 = 0
4/3 ± 37/3

f)    2x2 +6x+1 = 0
-3/2 ± 7/2

g)    8x2 −7x−2 = 0
7/16 ± 113/16

h)    1x2 +6x+2 = 0
-3 ± 7

i)    -8x2 +5x+6 = 0
5/16 ± 217/16

j)    9x2 −6x−2 = 0
1/3 ± 3/3