Week 4 in Precalc 11

This week we learned how to divide radicals. I struggled with this because of a new concept we learned called “Rationalizing the denominator”, which in a sense is really just multiplying the whole fraction by its denominator. By doing so, we’re getting rid of the square root on the denominator which in this equations case is 7.

A tip I find helpful when doing these type of equations is simplifying each radical before multiplying or dividing. For example \sqrt{72} gets converted to 6\sqrt{2} . After this step multiplying become much simpler in my opinion.