I believe I may have found one tangent (with the negative slope, but I cant seem to find the other tangent with the positive slope)

any help appreciated

Q.

Find equations of both lines through the point (2, -3) that are tangent to the parabola y = x^2 + x

edit. working with it more heres what i got

y = -x -1

and

y = 5x - 4

can somebody confirm these?