1. Algebra 1
Ch.10 Notes Page 81
P Factoring to Solve Quadratic Equations

2. Zero Product Property If ab = 0, then a = 0 or b = 0
What can x = to give you a zero in part of the problem???
(x + 5)(2x - 6) = 0
(x + 7)(x - 4) = 0
(3x - 6)(4x + 2) = 0

3. x2 - 8x - 48 = 0 x2 + 6x + 8 = 0 Solving by Factoring
1. Factor (Mult. to ac and Add to b)
2. Use Zero product property to find zeros
x2 + 6x + 8 = 0
x2 - 8x - 48 = 0

4. 2x2 - 5x = 88 x2 - 12x = -36 Solving by Factoring
1. Factor (Mult. to ac and Add to b)
2. Use Zero product property to find zeros
2x2 - 5x = 88
x2 - 12x = -36

5. y = x2 + x - 2 y = -x + 1 Substitution Activity
Use Substitution and Factoring to solve this system of equations...
Where do the equations Cross? (Without Graphing)
y = x2 + x - 2
y = -x + 1