Download presentation

Presentation is loading. Please wait.

Published byWayne Sellers Modified over 2 years ago

1
Notes 10: X-Box Factoring Aim: Students will be able to factor a trinomial where a is greater than 1. ax 2 + bx + c HW #15: Red text p. 218 #s 1 – 7, and p. 222 #s 1-15 (1 st column)

2
Hi guys! I just realized that tonight is Parent/Teacher conferences. Tell your parents that I am sorry I won’t be here tonight. If they need to contact me, they know how to, by email or phone. See you soon!

3
Directions: 1.Cut along the dotted lines. 2.Glue 2 of the x-box charts on page 33 and 34. 3.Title page 33: Notes: X-Box Factoring where a > 1 HW #15: Red text p. 218 #s 1 – 7, and p. 222 #s 1-15 (1 st column) Study for your quiz. *Some trinomial is not factorable, therefore it is prime.

4
1. FACTOR ____________________________ Last term 1 st Term Factor b acac __________________ = __________________ 3x 2 + 2x – 8 3(-8) = -24 +2 Since the product is negative, the factors must have different signs 3x 2 -8 + − Since b is positive, the larger factor must be positive What are factors of 24 that will give you 2? 64 = +2 +6x -4x Place the factors: 6 & -4 in the box and add an x to each x 3x Factors 3x, x +2 -4 (x + 2 )(3x – 4) Create your x-box x times ? = -4x 3x times ? = 6x What factors does 3x 2 & 6x have in common? 3x Page 33

5
2. FACTOR ____________________________ Last term 1 st Term Factor b acac __________________ = __________________ 5x 2 – 12x + 4 5(4) = 20 -12 Since the product is positive, the factors must have same signs as b 5x 2 +4 − − What are factors of 20 that will give you 12? 102 = -12 -2x -10x Place the factors: 6 & -4 in the box and add an x to each 5x x Factors 5x, x -2 (x – 2)(5x – 2) Create your x-box 5x times ? = -10x x times ? = -2x What factors does 5x 2 & - 2x have in common? x Page 33

6
3. FACTOR ____________________________ Last term 1 st Term Factor b acac __________________ = __________________ 2x 2 – 9x – 18 2(-18) = -36 -9 Since the product is negative, the factors must have different signs 2x 2 -18 + − Since b is negative, the larger factor must be negative What are factors of 36 that will give you 9? 312 = -9 +3x -12x Place the factors: 3 & -12 in the box and add an x to each 2x x Factors 2x, x +3 -6 (x – 6)(2x + 3) Create your x-box 2x times ? = -12x x times ? = 3x What factors does 2x 2 & 3x have in common? x Page 34

7
4. FACTOR ____________________________ Last term 1 st Term Factor b acac __________________ = __________________ 2x 2 – 9x + 10 2(10) = 20 -9 Since the product is positive, the factors must have same signs as b 2x 2 +10 - − What are factors of 20 that will give you 9? 45 = -9 -5x -4x Place the factors: -4 & -5 in the box and add an x to each 2x x Factors 2x, x -5 -2 (x – 2)(2x – 5) Create your x-box 2x times ? = -4x x times ? = -5x What factors does 2x 2 & - 5x have in common? x Page 34

8
5. FACTOR ____________________________ Last term 1 st Term Factor b acac __________________ = __________________ 3x 2 + 7x + 1 3(1) = 3 7 Since the product is positive, the factors must have same signs as b What are factors of 3 that will give you 7? Factors prime Create your x-box Page 34 None, therefore it is prime HW #15: Red text p. 218 #s 1 – 7, and p. 222 #s 1-15 (1 st column)

9
FACTOR ____________________________ Last term 1 st Term Factor b acac __________________ = __________________ Factors

Similar presentations

OK

By Amber Hills. Home About us Latest news sessions Gallery All these pages are connected together because wherever you are on the website you will always.

By Amber Hills. Home About us Latest news sessions Gallery All these pages are connected together because wherever you are on the website you will always.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on online education system Download ppt on turbo generator power Ppt on content development pros Ppt on cox and kings Ppt on cloud computing pdf Ppt on rc coupled amplifier experiment Ppt on condition monitoring devices Ppt on boston consulting group Ppt on astronomy and astrophysics colleges Ppt on hydro power plant