1. Class Greeting

2. -ax2 + bx + c Negative Leading Coefficient
Chapter 6 – Factoring
Lesson 6-3b
Factoring Trinomials
-ax2 + bx + c
Negative Leading Coefficient

3. Objective: The student will practice solving problems involving factoring trinomials of the form -ax2 + bx + c.

4. Distribute -1 out of the trinomial.
Factor
-24x2 + 22x - 3
-1( )
Distribute -1 out of the trinomial.
Factor the trinomial. or
(24x - )(x - )
(12x - )(2x - )
(8x - )(3x - )
(6x - )(4x - ) or or
Put in factors of 3 to make -22. -1
(6x - 1)(4x - 3)
Do not forget your -1.
Distribute -1 back into the first binomial.
Answer:
(-6x + 1)(4x - 3)
Example 4-1b

5. -6x2 + 7x + 10 (-6x - 5)(x - 2) or (-x + 2)(6x + 5) Factor Answer:
Example 4-3b

6. Lesson Summary:
Objective: The student will practice solving problems involving factoring trinomials of the form -ax2 + bx + c.

7. Preview of the next Lesson:
Objective: The student will learn how to factor the by Grouping.

8. Kahoot!

9. Stand Up Please

10. Review: 6.3a Mini-Quiz
1. Factor
2. Factor
3. Factor