2.Multiplying Binomials Using FOIL.notebook
April 06, 2016
Weds. Apr.6/16
Current Unit: #3- Quadratic Algebra
Goal: To be able to multiply two binomials
1. Algebra warm-up
2. How would you multiply these?
3. Introduction to Algebra Tiles
4. Lesson: Multiplying Binomials
5. Practice Sheet
HW Q's pg 166 9 abc, 11, 13
video
Oct 19­7:45 PM
Review algebra so far....
1) What is the name of the -3 in the term
2. What type of polynomial is
?
?
3. Simplify each of the following:
a)
b)
c)
d)
4. Expand & Simplify where applicable.
(use the distributive property)
a)
b)
c)
Sep 29­9:51 PM
1
2.Multiplying Binomials Using FOIL.notebook
April 06, 2016
Review algebra so far....
1) What is the name of the -3 in the term
2. What type of polynomial is
?
?
3. Simplify each of the following:
a)
b)
c)
d)
4. Expand & Simplify where applicable.
(use the distributive property)
a)
b)
c)
Sep 29­9:51 PM
Multiplying Monomials
1. determine sign
2. multiply #'s (coefficients)
3. multiply variables if possible (use exponent laws
where you can)
Ex.
a)
b)
c)
d)
e)
** NOTE
x + x = 2x
2
(x)(x) = x
x + x = 2x
x
2
(x)(x) = x
x
x
x
2
x
Sep 29­10:02 PM
2
2.Multiplying Binomials Using FOIL.notebook
April 06, 2016
Multiplying Monomials
1. determine sign
2. multiply #'s (coefficients)
3. multiply variables if possible (use exponent laws
where you can)
Ex.
a)
b)
c)
d)
e)
** NOTE
x + x = 2x
2
(x)(x) = x
x + x = 2x
x
2
(x)(x) = x
x
x
x
2
x
Sep 29­10:02 PM
Like Terms Lesson (I)
*Positive Algebra Tiles ­ red red reminds me of hot temperatures which are positive eg. +28oC
Term
Area
Term name
1 unit
1 unit
1 unit
x units
x units
x units
May 13­10:03 AM
3
2.Multiplying Binomials Using FOIL.notebook
April 06, 2016
*Negative Algebra Tiles ­ blue
blue reminds me of cold temperatures which can be negative eg. ­8oC
Term
Term name
Area
1 unit
1 unit
1 unit
x units
x units
x units
May 13­10:03 AM
x2
x
x
1
1
1
Expression: __________________
example 2x 2 + 5x ­ 4
Mar 5­8:13 PM
4
2.Multiplying Binomials Using FOIL.notebook
April 06, 2016
What about (x)(x) ?
What about 2 (x+3) ?
Bank
Feb 25­9:46 PM
What about (x)(x) ?
What about 2 (x+3) ?
Bank
Feb 25­9:46 PM
5
2.Multiplying Binomials Using FOIL.notebook
April 06, 2016
How would you multiply these
a) (x+3)(x+7)
b) (x­2)(x+5)
Sep 29­8:11 AM
Application
The dimensions of a rectangle are 3x­2 and ­2x+3. Write a simplified expression to represent the area. Mar 24­9:15 AM
6
2.Multiplying Binomials Using FOIL.notebook
April 06, 2016
7
2.Multiplying Binomials Using FOIL.notebook
April 06, 2016
8