Factoring polynomials - Special product forms (K-A)

• Factoring difference of squares: two variables (K-A)
• Factoring difference of squares: leading coefficient ≠ 1 (K-A)
• Factoring perfect squares: negative common factor (K-A)
• Factoring perfect squares: 4th degree polynomial (K-A)
• Factoring difference of squares: two variables (example 2) (K-A)