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Accelerated Math 2
Log Equations
Name ___________________________
Given log a 5  x and log a 3  y use the properties to find each of the following.
1. log a 45
4. log a
25
9
2. log a 9
5. log3 5
3. loga 5
6. log a 75
Solve.
7. log x  log 4  2
9. log a x 
2
1
log a 8  log a 25  2 log a 5
3
2
11. log  2 x  3  log  x  3  1
8.
1
log x  log  2 x  1
2
10. log  x  6  2  log  x  15
12. log2  log2 16  log7 x
Answers: 1) x + 2y 2) 2y 3) ½ x
4) 2x – 2y 5) x/y 6) x + ½ y
7) x = 25 8) x = 1 9) x = 20 10) x = 10 11) x = 27/8 12) x = 49