Root equation solver

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Enter an equation in here. It may contain a root.
To mark the beginning and the end of the root, use the symbol .

What are root equations and how to solve them?

Root equations are equations containing a variable below a square root. This is a problem when you want to solve them. So root equations are often solved by squaring them in a good way:

First put the root on one side, then square the whole equation, then solve the gotten equation. Solutions of that equations do not necessarily have to be solutions of the root equation cause squaring is no equivalence transformation. Therefore, it is necessary to try out if such a solution really solves the root equation.