# inverting this equation [closed]

I'm trying to inverse this equation

Z = X + X^2 / 2


but couldn't wrap up my head around it. If anyone can provide a step by step solution to this it will be really helpful.

-

## closed as off-topic by Yves Klett, m_goldberg, rasher, bobthechemist, rm -rf♦Mar 19 at 5:15

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "This question arises due to a simple mistake such as a trivial syntax error, incorrect capitalization, spelling mistake, or other typographical error and is unlikely to help any future visitors, or else it is easily found in the documentation." – Yves Klett, m_goldberg, rasher, bobthechemist, rm -rf
If this question can be reworded to fit the rules in the help center, please edit the question.

Do you mean solve for X as a function of Z? Perhaps try the aptly named Solve function. There are step-by-step examples in the documentation. –  Ian Mar 18 at 13:37
yea trying to solve X –  clinraus Mar 18 at 13:40

Use Solve or Reduce for this task
Reduce[z == x + x^2/2, x]