since you show neither your work nor the choices, it's tough to see where you went wrong.
However, the roots will be equidistant from the axis of symmetry, at
x = 7/10 = 0.7
So, pick the choice where the roots are the same amount above and below 0.7
I need to find the approx. value for x that are solutions to f(x)=0 for
f(x)=-5x^2 + 7x + 2
please show steps as the answer I got does not match any of the multiple choices.
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