1. 3.4 Solve by Factoring (Part 2)

2. Factoring Perfect-Square Trinomials
If the first term and the last term of a trinomial are perfect squares but there is a center term
It can not be the difference of perfect squares but it may be a perfect square trinomial

3. Example:
x4 – 16
4x2 – 24x + 36
9x2 – 49
x2 + 16x + 28

4. Zero Product Property (ZPP)
When finding the solutions to Quadratic Equations we need to use ZPP the Zero Product Property
Solutions are also known as …
Roots of the function
Zeros of the function
“x =”
Where the graph crosses the x – axis
To find solutions we must factor (completely) first then set the factors equal to zero and solve for “x”

5. Examples Find the roots/zeros of the equation. x2 – 2x – 15 = 0
(i.e. Find the answers)
x2 – 2x – 15 = 0
x2 + 2x – 3 = 0

6. Homework
Pg. 76, 1 – 29 odds
Pg. 77, 3 – 24 (x 3’s) and