1. (1) Rational Equations : equations containing rational
ex pressions
Way to solve rational equations: multiply by the LCD on
both sides of the equation to
get rid of the denominators .
Ex: Solve
2. Radical equations : A "radical" equation is an equation
in which the variable is hiding inside
a radical symbol (in the radicand).
The principle of powers : if a = b is true , then
is true
Way to solving radical equations: apply above principle and the fact that
Ex: Solve
3. Equations with absolute value
Principle : 
Ex: Solve
