Post on 26-Sep-2020
smart_3_3 a.notebook
1
February 15, 2013
Introduction
?
ç
Think About It
smart_3_3 a.notebook
2
February 15, 2013
Key Concepts p. 1
?
?
?
??
?
Key Concepts p. 2
?
?
smart_3_3 a.notebook
3
February 15, 2013
Key Concepts p. 3
??
To determine the factors of 4x + 10 symbolically,
divide by the Greatest Common Factor of the two
terms.
To determine the factors of 2x 10, pictorally, draw
the algebra tiles in the shape of a rectangle and record the dimensions.
2x 10 = 2(x 5)
Example 1
üç ?
ç ?
Show the factors using pictures and symbols.
Pictorally: Symbolically:1. determine the greatest common factor
of the two terms and divide each term by
that factor.
2. write the two factors side by side
smart_3_3 a.notebook
4
February 15, 2013
Apr 1811:28 AM
Polynomial Factoring - GCF First
When asked to factor a polynomial the first strategy to try is to factor out a Greatest Common Factor
1. Factor the following polynomials. Sketch a rectangle to show the polynomial area and dimensions.Use grid multiplication to check the answer.
Summary:
The next slides contain answers and more
examples.
Example 1 Solution p.1
smart_3_3 a.notebook
5
February 15, 2013
Example 1 Solution p.2
Û
ç ?
ç ?
Example 3 Solution p.1
smart_3_3 a.notebook
6
February 15, 2013
Feb 153:01 PM