1. Solve for x. Verify the solution with a graph. 

(3.1.1)

 

(3.1.2)

 

(3.1.3)

 

Screen Shot of Evaluate a a point Window. 

(3.1.4)

 

(3.1.5)

 

(3.1.6)

 

Using Plot from the Context Panel does not show the point of intersection. Better to use the plot command.  

(3.1.7)

 

.  

(3.1.8)

 

(3.1.9)

 

(3.1.10)

 

(3.1.11)

 

(3.1.12)

 

(3.1.13)

 

(3.1.14)

 

(3.1.15)

 

(3.1.16)

 

The image constructed with the plot command is a bit cleaner.   

Testing one of the solutions: 

(3.1.17)

 

(3.1.18)

 

(3.1.19)

 

(3.1.20)

 

(3.1.21)

 

(3.1.22)

 

(3.1.23)

 

(3.1.24)

 

(3.1.25)

 

(3.1.26)

 

#) + ) = ⇒= ⇒ #Why is  3  omitted as a valid answer? 

Error, (in ln) numeric exception: division by zero

 

(3.1.27)

 

(3.1.28)

 

(3.1.29)