1. Factoring GCF and DOTS

2. Standard form for quadratic equations: ax2 + bx + c = 0
GCF: Greatest Common Factor
The largest number that divides evenly into two or more numbers
The largest number of variables common to two or more terms

3. Examples: Factor each expression (no equal sign)

4. Solving (has equal sign)
Put in standard form
Factor
Set each factor that has a variable equal to 0 and solve.

5. Examples: Solve each equation

6. If you have only and a and b (no c) – you have a GCF
If you have only and a and b (no c) – you have a GCF!! You may have a GCF with any number of terms ALWAYS look for a GCF before using any other factoring method

7. DOTS: Difference of Two Squares
Only 2 terms (a and c, no b)
Both terms are perfect squares
Subtraction in between

8. Steps Factor out GCF if needed Square root both terms
Write two factors – one + and one -

9. Examples: Factor.

10. Examples: Solve.