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


Practice

Solve for x.
a)    1x2 −5x−7 = 0
5/2 ± 53/2

b)    -7x2 −7x+5 = 0
-1/2 ± 321/14

c)    -7x2 +9x+5 = 0
9/14 ± 221/14

d)    3x2 +7x−4 = 0
-7/6 ± 97/6

e)    -3x2 −5x+5 = 0
-5/6 ± 85/6

f)    4x2 +9x+4 = 0
-9/8 ± 17/8

g)    1x2 −8x+6 = 0
4 ± 10

h)    3x2 −6x−8 = 0
1 ± 33/3

i)    -2x2 +8x+9 = 0
2 ± 34/2

j)    -1x2 −3x+9 = 0
-3/2 ± 35/2