Show that the tangent to the curve is also the tangent to the curve at another point.

Question

Show that the tangent to the curve Y=(x² + x - 2)³ + 3 at the point (1 , 3) is also the tangent to the curve at another point.

I know how to find the equation but how do I show that the tangent is also at another point, pls help

Answer 1