This week in precalculus we learned how to solve redical equations. There are rules to remember when multiplying and dividing radical expressions.

Multiplication:

1) It is recommended to simplify first, because it is easier to simplify the smaller number

2) Remember to use the distributive property (FOIL aka the claw method)

Division:

1) There should not be a negative on the bottom of a fraction, so always move it to the top of the fraction

2) There should not be a square root sign in the denominator

monomial: multiply both the top and the bottom by the radical and the root of the denominator (with out coefficient)

binomial: multiply the conjugate of the denominator to both the top and the bottom of the fraction (remember that you need to foil when multiplying)

example: