Use the quadratic formula to solve x² + 9x + 10 = 0. What are the solutions to the equation?

Round irrational solutions to the nearest tenth.
(answer options):

The quadratic formula: (-b+-sqrtb^2-4ac)/2a

Plugging in the values of a=1, b=9, and c=10, the roots of the equation are: -7.7 and -1.3.

So, the first option is correct.

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