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No. 1
(2a)^-4
= 1/(2a)⁴
Atau:
= 1/[2⁴ x a⁴]
= 1/[16a⁴]
No. 2
a^-5
Lewat sifat pangkat:
= 1/a⁵
No. 3
6 x 8^-3
= 6 x 1/8³
= 6 x 1/512
= 6/512
= 3/256
= 3¹ / 2⁸