a
x
=
log
a
m
(
)
log
a
x
(
)
log
a
×
(
)
=
a
log
a
m
(
)
a
log
a
n
(
)
n
×
log
a
+
(
)
a
log
a
m
(
)
log
a
n
(
)
log
a
(
m
)
log
a
(
n
)
log
a
a
x
x
=
(
)
+
=
=
x
m
x
n
x
m+n
=