Question

What are the solutions of the quadratic equation below?

2x\[^{2}\] - 2x - 9 = 0

Answer 1

2x^2 - 2x - 9 = 0

a = 2
b = -2
c = -9

x = -b +-√b^2-4ac / 2a
use the quadratic formula to find out

Answer 2

i got x=2+-√76 /4 @shamil98 but i don't think that's right, what did i do wrong??