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(Langsung jawab)
8.
a.
[tex]\frac{3z^3}{z^5} = 3z^{-2}[/tex] (rumus operasi eksponen, [tex]a^m : a^n = a^{m-n}[/tex] )
b.
[tex]\frac{4x^{-2}}{x^{-3}} = 4x^1 = 4x[/tex]
9.
a.
[tex]\frac{2^3}{2^5} = \frac{2*2*2}{2*2*2*2*2} = \frac{1}{2*2} = \frac{1}{4}[/tex]
b.
[tex]\frac{1}{3^5} * \frac{1}{3^{-2}} = \frac{1}{3^5} * \frac{1}{\frac{1}{3^2} } = \frac{1}{3^5} * \frac{3^2}{1}[/tex]
[tex]= \frac{3^2}{3^5} = \frac{1}{3^3} = \frac{1}{27}[/tex]
[answer.2.content]
