Factoring Polynomials Strategically
SAT MathAdvanced MathFoundation
Recognize greatest common factors, trinomials, and special products.
What you need to know
- Always check for a greatest common factor first.
- x² + bx + c factors using two numbers with sum b and product c.
- a² − b² = (a − b)(a + b).
- Factored form reveals zeros; expanded form reveals coefficients.
The AYLOTI method
- Factor out the GCF.
- Identify the remaining pattern.
- Choose factor pairs and signs.
- Multiply back to verify.
AYLOTI • Sir Hunain Zia • SAT Score 1594/1600 • 154 Total A Grades (Personal), 11 World Records, 7 Distinctions
Worked example
Factor 6x² − 24.
- GCF is 6: 6(x² − 4).
- x² − 4 is a difference of squares.
- Factor: 6(x − 2)(x + 2).
Answer: 6(x − 2)(x + 2).
Common SAT traps
- Stopping before factoring a special product.
- Forgetting the GCF.
- Using factors whose product is correct but sum is wrong.
Quick check
Factor x² + 7x + 12.
(x + 3)(x + 4).
Before you move on
- Explain the core rule without looking back.
- Redo the worked example using your own steps.
- Write the trap you are most likely to fall for.
