Logarithmic & Exponential Form
Name :
Score :
Logarithmic & Exponential Form
Express each equation in logarithmic form.
1) 2 = r
2) a = 128
3) u = 3 5) 4 = 64 7) x = 2
4) 7 = s
6)
3?
?
=
1 9
8) 6 = r
Express each equation in exponential form.
9) log 512 = h
10) log? 36 = 2
11)
log
1 16
= ?y
13) log? 81 = 4
12)
log
p =
1 6
14) log 7 = f
15) log n = 2
16)
log
k =
1 2
Printable Math Worksheets @
Name :
Answer key
Score :
Express each equation in logarithmic form.
1) 2 = r
2) a = 128
log r = 3 3) u = 3
log 128 = 7 4) 7 = s
log ?
3 =
1 4
5) 4? = 64
log 64 = z 7) x = 2
log s = 6
6)
3?
?
=
1 9
log ?
1 9
=
d
8) 6 = r
log ?
2
=
1 6
log r = 3
Express each equation in exponential form.
9) log 512 = h
10) log? 36 = 2
?
8 = 512
11)
log
1 16
= ?y
4?
=
1 16
13) log 81 = 4
a = 36
12)
log
p =
1 6
64 = p 14) log 7 = f
x = 81 15) log n = 2
49 = 7
16)
log
k =
1 2
11 = n
8 =k
Printable Math Worksheets @
Name :
Score :
Single Logarithm and Expansion
Expand each expression :
1) log x y m n
=
2) log 5a
=
3) 5 log a b n
=
4)
log ?
b c
=
5) 4 log p q r s
=
Rewrite each expression in single logarithm:
6) (4 log x + 5 log? ? ? ? log? z
=
7) (3 log m + 12 log n? ? 3 log p
=
8)
1 3
(4
log ?
s + log ?
t?
=
9) 40 log t ? (8 log
?
?
?
?
?
?
=
10) 6 (log 5 ? log m?
=
Printable Math Worksheets @
Name :
Expand each expression :
1) log x y m n
=
2) log 5a
=
3) 5 log a b n
=
4)
log ?
b c
=
5) 4 log p q r s
=
Answer key
Score :
(2 log x + 3 log y? ? (log log n? ?
1 2
(log
5 + 7 log
a?
(10 log a + 5 log b) ? 15 log n
4 (log b ? log c?
(24 log p + 12 log q? ? (8 log r + 4 log s?
Rewrite each expression in single logarithm:
6) (4 log x + 5 log? ? ? ? log? z
=
7) (3 log m + 12 log n? ? 3 log p
=
8)
1 3
(4
log ?
s + log ?
t?
=
9) 40 log t ? (8 log
?
?
?
?
?
?
=
10) 6 (log 5 ? log m?
=
log
x y z
3 log
m n p
log s t
8 log t w x
log
5 m
Printable Math Worksheets @
Name :
Logarithm - Solve
Score :
Solve for x.
Example 1:
log 4 = x
64 = 4
4? = 4
x =
1 3
Solve for x.
1) log 2 = x
Example 2: log x = 2 5 = ?
?
5? = x x = 625
2) log? 64 = 2
x =
3) log
1 6
= x
x =
5) log
1 8
= x
x =
7)
log?
6 =
1 2
x = 9) log x = 3
x =
4) log
1 16
= x
x =
6)
log?
3 =
1 4
x = 8) log x = 2
x = 10) log 25 = x
x =
x =
Printable Math Worksheets @
Name :
Score :
Logarithmic Equation
Solve for x.
Example 1:
log 4 = x
64 = 4
4? = 4
x =
1 3
Solve for x.
1) log 2 = x
Example 2: log x = 2 5 = ?
?
5? = x x = 625
2) log? 64 = 2
x =
1 2
3) log
1 6
= x
x =
?1
5) log
1 8
= x
x =
3
7)
log?
6 =
1 2
x = 36 9) log x = 3
x =
2
4) log
1 16
= x
x =
?4
6)
log?
3 =
1 4
x =
81
8) log x = 2
x = 729 10) log 25 = x
x = 64
x =
2 3
Printable Math Worksheets @
Name :
Logarithm - Solve
Score :
Solve for x.
Example 1: log
?
?
?
?
1 3
= x?5
?
?
?
?
=
1 3
?
?
?
?
= ?
?
?
x = 4
Solve for x.
1) log 6 = x+3
Example 2: log (2x) = 2 8? = (2x) (8? ) = 2x 4 = 2x x = 2
2) log 64 = 2
x =
3) log
1 4
= x?1
x =
5) log
x 8
=
1 5
x =
7)
log
16 = 4
x =
4) log
1 9
= 2x
x = 6) log 625 = 2x+3
x = 8) log (4x) = 2
x = 9) log (x?1) = 3
x = 10) log 2 = 2
x =
x =
Printable Math Worksheets @
Name :
Answer key
Score :
Solve for x.
Example 1: log
?
?
?
?
1 3
= x?5
?
?
?
?
=
1 3
?
?
?
?
= ?
?
?
x = 4
Solve for x.
1) log 6 = x+3
Example 2: log (2x) = 2 8? = (2x) (8? ) = 2x 4 = 2x x = 2
2) log 64 = 2
x =
?
5 2
3) log
1 4
= x?1
x =
3 5
5) log
x 8
=
1 5
x =
7)
log
16 = 4
x =
8 3
4) log
1 9
= 2x
x =
?1
6) log 625 = 2x+3
x =
?
1 2
8) log (4x) = 2
x =
1
9) log (x?1) = 3
x = 324 10) log 2 = 2
x = 730
x =
1 8
Printable Math Worksheets @
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