Correct answer:  

Answer by ikleyn(52818)   (Show Source): You can put this solution on YOUR website!
 .

  3log3(1/81)+log5(1/25)-log2(1/16) = 


= 


= 3(-4)*1+(-2)*1-(-4)


= -12 - 2 + 4 = -10.






Writing by "josgarithmetic" is wrong.







On logarithms and their properties see the lessons



    - WHAT IS the logarithm 



    - Properties of the logarithm 



    - Change of Base Formula for logarithms 



    - Solving logarithmic equations 



    - Using logarithms to solve real world problems 



in this site.





Also, you have this free of charge online textbook in ALGEBRA-I in this site



    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.





The referred lessons are the part of this online textbook under the topic "Logarithms".





 

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