1. Factor the equation: 3 𝑥 2 −13𝑥−10=0
Problem of the Day

2. Section 4-3c Solve Quadratic Equations by Factoring

3. Then Now Objectives You factored quadratic equations.
Solve quadratic equations by factoring.

4. Common Core State Standards
Content Standards
A.SSE.2 – Use the structure of an expression to identify ways to rewrite it.
F.IF.8.a – Use the process of factoring and completing the square in a quadratic function to show zeros, extreme values, and symmetry of the graph, and interpret these in terms of context.
Mathematical Practices
2) Reason abstractly and quantitatively.
Common Core State Standards

5. Factor and solve the equation: 8 𝑥 2 −14𝑥+3=0
Example 4 Continued

6. Factor and solve the equation: 6 𝑥 2 +11𝑥=2
Example 4 Continued

7. Factor and solve the equation: 5 𝑥 2 −12=−17𝑥
Example 4 Continued

8. Factor and solve the equation: 𝑥 2 =6𝑥−5
Example 4 Continued

9. Factor and solve the equation: 3 𝑥 2 −13𝑥=10
Example 4 Continued

10. Additional Example Which function has the roots -2 and 3?
f(x) = 2(x + 2)(x + 3)
f(x) = 4(x – 2)(x – 3)
f(x) = 3(x – 2)(x + 3)
f(x) = 5(x + 2)(x – 3)
Additional Example

11. p.242 #18, 19, 36, 38, 39, 42, 91 – 93
Homework