Nomor 1,3,4 dong bantu susah

1) (a^2 b^3 / c : a / b^2 c^2)^2
= a^4 / c^2 : a^2 / b^4 c^4
= a^4 b^6 / c^-2
= a^2 b^2 c^2 (E)

3) (8x^4 y^-3 z^2 / 2x y ^-2 z^4)^3
= (8x^-3 / 2y z^2)^3
= (8^3 x^9 / 2^3 y^3 z^6)
= 512 x^9 / 8 y^3 z^6
= 512 x^9 / 8y^3 z^6
= 64 x^9 / y^3 z^6 (A)

4) (27a^-5 b^-3 / 3^5 a^-7 b^-5)
=27 a^2 b^2 / 243
=1 a^2 b^2 / 9