mohon bantuannya kak

[tex]a = 8 \\ a = {2}^{3} \\ \\ b = \frac{1}{16} \\ b = \frac{1}{ {2}^{4} } \\ b = {2}^{ - 4} \\ \\ c = \frac{1}{125} \\ c = \frac{1}{ {5}^{3} } \\ c = {5}^{ - 3} [/tex]

[tex] = \frac{ {b}^{ - 1} }{ {(ac)}^{ \frac{1}{3} } } \\ = \frac{ { ( {2}^{ - 4} )}^{ - 1} }{ {( {2}^{3} {5}^{ - 3}) }^{ \frac{1}{3} } } \\ = \frac{ {2}^{ - 4 \times ( - 1)} }{( {2}^{3 \times \frac{1}{3} }) ({5}^{ - 3 \times \frac{1}{3} }) } \\ = \frac{ {2}^{4} }{ {2}^{1} \times {5}^{ - 1} } = \frac{ {2}^{4} {5}^{1} }{ {2}^{1} } = \frac{16 \times 5}{2} = 40[/tex]
Semoga dapat dipahami