Name:____________________________               Ch  3  Test  2  Review    Solve  the  equation.  Circle  your  final  answer.  

1. log! 𝑥 + 6 = log! 3𝑥 − 6    

2. ln 765 = ln 𝑥    

3. −6− 7 log! −4𝑏 − 9 = −6    

4. log 𝑥! − log −5𝑥 = 2    

5. 3!!!! = 81    

6. 𝑒! = 256    

7. 4 5!! = 48    

8. 𝑒!! − 2𝑒! − 15 = 0    

9. 3!!! = 2!!!    

10. 4!!! = !!

!  

 11.  log! 𝑥 − 2 + log! 𝑥 + 3 = log! 14  

 12. 5!!!! = 5!!!  

 13. ln 5𝑥 = −2  

 14. log 𝑥 + log 3 = log 18  

 15.  log(7𝑥 + 3)− log 𝑥 + 1 = log 2𝑥  

 16. 12! = 12!"#  

   

17. Mr.  X  invested  a  sum  of  money  in  a  CD  that  earns  7.5%  interest  compounded  continuously.  If  Mr.  X  made  the  investment  on  March  1,  2010,  and  the  account  was  worth  $10,000  on  March  1,  2015,  what  was  the  original  amount  in  the  account?