April 26­27
5.4 Solve Quadratic Equations by Factoring
Ex1: Solve (2x + 3)(x - 4) = 0
Ex2: Solve x2 + x - 42 = 0
Ex3: Solve x2 - 8x - 48 = 0
Ex4: Solve 3x2 - 2x = 21
April 26­27
Guided Practice.
Solve each quadratic.
1. 4x2 + 8x + 3 = 0
3. x2 - 12x = - 36
2. 10x2 - 3x - 1 = 0
April 26­27
April 26­27