Use the quadratic formula to solve x² + 9x + 10 = 0.

What are the solutions to the equation?

Round irrational solutions to the nearest tenth.


A. x = -10 and x = 2

B. x = -8.9 and x = -0.14

C. x = -7.7 and x = -1.3

D. x = -7 and x = -1

I think answer is C but I could be wrong.