Tolong dibantu jawab ya kak ,makasih... No 1 dan 2

^ tanda pangkat
1)
a^-2 . b^-3 . c
-------------------
a . b^-4 . c^-3

b^(-3+4) . c^(1+3)
------------------------
a^(1+2)

b^1 . c^4
-------------
a^3

= b.c⁴ / a³

2) 7.a^⅓ . b^3/2 . c^-1
= 7 (27)^⅓ . (4)^3/2 . 3^-1
= 7 . (3^3)^⅓ . (2^2)^3/2 . (1/3^1)
= 7 . 3^(3×⅓) . 2^(2×3/2) . (1/3)
= 7 . 3^1 . 2^3 . (1/3)
= 7 × 3 × 8 × 1/3
= 56