Solve the equation with the quadratic formula *
10 points
V59
5
5
9) 10n? +11n-7=-9
2 + V
V592-V
A)
B) {-2 + V15,-2 - Vi
15
1-11 + V41 -11 - V41
C)
(4+171 4-771
D)
20
20
10
10
