1. 5.2B Solving Quadratics – Special Patterns
Difference of Two Squares a2
– b2
= _____________________
EX 1: x2
– 9 EX 2: 4x2
– 25
Binomial Theorem
a2
+ 2ab + b2
= _________________________
a2
– 2ab + b2
= _________________________
EX 3: 9x2
+ 24x + 16 EX 4: 49x2
– 14x + 1
Factoring Monomials First
Before factoring, check each ___________ to see if there is anything common first.
EX 5: 5x2
– 20 EX 6: 6x2
+ 15x + 9
EX 7: 2x2
+ 8x EX 8: 4x2
+ 4x – 4
HW p. 261 (48 – 64 even)