Question 287996
Do you see an equal sign? I don't see an equal sign. So nothing is equated and so there is no equation.
-0.2x^2+12x+11

Which x and y coordinates do you want? There is no y.
Do you see a "y"?

You really should copy the problem as given and not try to invent it. 
(x-60.9031) (x+0.903074) = 0
*[invoke quadratic "x", -.2, 12, 11 ]