tolong lagi dong nomor 22:)

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

(1/4 a^1/3)^-3/2 : (2a^-3/2)
= (2^-2 a^1/3)^-3/2 : (2a^-3/2)
= 2^3 . a^-1/2 : (2 a^-3/2)
= 2^(3 - 1) . a^(-1/2 - (-3/2))
= 2^2 . a^2/2
= 4 a