inverse quadratic equations?

[xkiwibird]

i'm extremely stuck on this problem.
it's y=x²+x.
i know the first step is switching y and x to get x=y²+y, but i don't know what to do afterwards to inverse it, and i am supposed to use the quardatic equation?
please help, thanks!

[Martingale]

i'm extremely stuck on this problem.
it's y=x²+x.
i know the first step is switching y and x to get x=y²+y, but i don't know what to do afterwards to inverse it, and i am supposed to use the quardatic equation?
please help, thanks!

You could try completing the square

[stapel_eliz]

it's y=x²+x.
... i don't know what to do afterwards to inverse it, and i am supposed to use the quardatic equation?

You have x² + x - y = 0, so a = 1, b = 1, and c = -y. Plug these into the Quadratic Formula to solve for x in terms of y. Then swap the variables, etc, etc.