How to simplify radical expressions

We can solve/simplify the radical expressions by expressing them in simplest forms, so that there are no more square roots, cube roots etc left to find. We also have to make sure that no radical is left in the denominator.

For example:

Solving this we get;

=

=

= = 7.744

In this way radical expressions are solved.

b or 2, just plug these equations into your graphing calculator then check the graph to see the image. if it matches up then that's your answer!