**Unit N2.5

Solving equations with surds

As an extension exercise, consider the problem of finding the x in the surdal equations below.

e.g. Solve

Final step: Check to see whether our answer(s) fit the original equation:

Substituting x = 82 in the original equation does not fit, but x = 2 is the correct answer.

Click here to solve some surdal equations. You will need to scroll down to section 4. Surdal Equations.