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1.1 Checks for example 3

 

Example 3.Original Problem: .

Factored Form  

 

Check 1:The tables of values for each expression are equivalent. Though we certainly

cannot check all possible values, the following table supports our answer.

 

 

 

 

1

2

2

2

12

12

3

36

36

4

80

80

5

150

150

6

252

252

7

392

392

8

576

576

9

810

810

10

1100

1100

 

 

 

Check 2: If we let  on our graphing calculator, we obtain graphs like the following. The graphical representations look identical. Again, this is not a sure-fire proof, but these graphs do support our answer.

 

Y1

Y2