This week in PreCalc we learned about solving radical equations. I learned how to take an ugly equation like this one 4=
Ex:
To do so you have to state the restrictions of x(it’s mostly x>=0), then isolate x (if needed). Then you have to get rid of the square root by squaring it, then isolate x again. Then you have an answer. But you must check that it works by doing it again but by replacing x with what number you got and checking the restrictions.
Ex:
