Show that the tangent to the curve y=(x^2+x-2)^3+3 at the point (1,3) is also the tangent to the curve at another point.
This is what I did so far...
I found the derivative of the curve and I got:
then I found
and then I put
and now I am trying to solve for x, BUT I cannot find any factors of x... so? am I doing it right?