12^5
:
6^5
=
____________________
15^4
:
5^4
=
____________________
(
-
12
)
^3
:
6^3
=
-
____________________
(
-
20
)
^5
:
(
-
2
)
^5
=
____________________
8^6
:
(
-
2
)
^6
=
____________________
(
6^3
.
4^3
)
:
(
-
8
)
^3
=
-
____________________
[
(
8^4
.
(
-
5
)
^4
]
:
(
-
20
)
^4
=
____________________
