Properties of Logarithms
Algebra 2
Name___________________________________
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Properties of Logarithms
Condense each expression to a single logarithm.
1) 4 log 9 10 - 6 log 9 3
2) 12 log 7 10 - 2 log 7 11
3) 4 log 9 7 + 24 log 9 10
4) 5 log 2 x + 10 log 2 y
5) log 5 x + log 5 y + 4 log 5 z
6) ln a + ln b + 3 ln c
7) 4 log 5 x - 24 log 5 y
8) 2 log 6 u - 8 log 6 v
9) 2 log 3 x + 5 log 3 y
10) 4 log 8 x - 4 log 8 y
Expand each logarithm.
11) log 4 ( x y
13) log 4
a
5
b
5
2 2
)
15) log 7 (12 ¡Á 5
12) log 5 ( x ¡Á y)
2
14) log 5
4 3
)
17) log 4 ( x ¡Á y ¡Á z
19) log
3
5
2
4
)
x
6
y
5
16) log (uv
6
5 3
)
18) log 5 ( x y
6 5
20) log 3 ( x y
6 6
)
)
2
Worksheet by Kuta Software LLC
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Algebra 2
Name___________________________________
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Properties of Logarithms
Condense each expression to a single logarithm.
1) 4 log 9 10 - 6 log 9 3
log 9
10
6
3
3) 4 log 9 7 + 24 log 9 10
log 9 (10 ¡Á 7
24
)
4
5) log 5 x + log 5 y + 4 log 5 z
log 5 ( yxz
x
log 7
24
y
9) 2 log 3 x + 5 log 3 y
5 2
)
12
2
11
4) 5 log 2 x + 10 log 2 y
log 2 ( y x
10 5
)
6) ln a + ln b + 3 ln c
3
)
8) 2 log 6 u - 8 log 6 v
4
log 3 ( y x
10
ln (bac
)
4
7) 4 log 5 x - 24 log 5 y
log 5
2) 12 log 7 10 - 2 log 7 11
4
log 6
2
u
8
v
10) 4 log 8 x - 4 log 8 y
log 8
x
4
y
4
Expand each logarithm.
11) log 4 ( x y
2 2
)
12) log 5 ( x ¡Á y)
2
2 log 4 x + 4 log 4 y
13) log 4
a
5
b
5
15) log 7 (12 ¡Á 5
4 3
)
3 log 7 12 + 12 log 7 5
17) log 4 ( x ¡Á y ¡Á z
4
)
log 4 x + log 4 y + 4 log 4 z
19) log
3
5
12 log 5 x + 6 log 5 y
14) log 5
5 log 4 a - 5 log 4 b
2
6
x
6
y
5
6 log 5 x - 5 log 5 y
16) log (uv
5 3
)
3 log u + 15 log v
18) log 5 ( x y
6 5
)
5 log 5 x + 30 log 5 y
20) log 3 ( x y
6 6
)
2
6 log 3 x + 36 log 3 y
2 log 3 - 2 log 5
Worksheet by Kuta Software LLC
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