Select the approximate values of x that are solutions to f(x)=0, where f(x)=-9x^2+5x+7

A. (1.20,-0.65)

B. (-9,5)

C. (-0.56,-0.78)

D. (-1.29,0.71)

A. (1.20,-0.65)

B. (-9,5)

C. (-0.56,-0.78)

D. (-1.29,0.71)

I believe the answer is D. This is not my final I have two weeks to cram for the test and need to refresh on topics earlier in the course. My math Partner came up with a different answer and we do not know who is correct or if we skipped a step.

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