Problem :
Evaluate log69 + log64.
2.
Problem :
Evaluate log34 - log3324.
-4.
Problem :
Evaluate 3 log210 + log23 - log215 - 2 log25.
3.
Problem :
Evaluate log4167.
14.
Problem :
Evaluate log
108 - 2 log
2.
-3.
Problem :
Evaluate 2 log515 - 2 log53.
2.
Problem :
Evaluate log414 - log4126 + 2 log43.
0.