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1.1 Checks for example 4

 

Example 4. 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.

 

x

 

 

 

1

2

2

2

0.15625

0.15625

3

0.041152

0.041152

4

0.016602

0.016602

5

0.00832

0.00832

6

0.004758

0.004758

7

0.002975

0.002975

8

0.001984

0.001984

9

0.001389

0.001389

10

0.00101

0.00101

 

 

 

 

Check 2: The graphical representations support our answer. If we let , the graphical representations appear to be identical.

 

Y1

Y2

 

 

 

 

 

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