1. Section P4

2. Rational Equations Multiply both sides by the common denominator
The denominators cancel out and you have an equation
Solve the equation
Check your answers

3. X-Intercepts
X-intercept
Zeros
Real Solutions
Roots

4. Quadratic Equations Take the square root of both sides
Put plus or minus on one side of the equation
Solve the two equations for x
Check your answers

5. U-Substitution Put the equation in standard form
Let u = the middle term without the coefficient
Let u squared be the first term without the coefficient
Substitute in u squared and u
Factor the new equation
Solve for u

6. U-Substitution Plug back in what u equals
Solve for the variable in the given equation
Check your answers