Nomor 7e
[tex]\left( \frac{1}{4} \right)^{4} \times \left( - \frac{1}{3} \right)^{2} \\ \\ = \frac{ {1}^{4} }{ {4}^{4} } \times \left( \frac{ {( - 1)}^{2} }{ {3}^{2} } \right) \\ \\ = \frac{1}{256} \times \left( \frac{ {1} }{ {9}} \right) \\ \\ = \frac{1}{2.304} [/tex]
[tex] \\ [/tex]
Nomor 7f
[tex]\left( \frac{1}{4} \right)^{4} \div \: - \left(\frac{1}{3} \right)^{2} \\ \\ = \left( \frac{ {1}^{4} }{ {4}^{4} } \right) \div \: - \left( \frac{ {1}^{2} }{ {3}^{2} } \right) \\ \\ = \frac{1}{256} \div \left( - \frac{1}{9} \right) \\ \\ = \frac{1}{256} \times \left( - \frac{9}{1} \right) \\ \\ = - \frac{9}{256} [/tex]
[tex] \\ [/tex]
Nomor 8a
[tex] {7}^{x} = 343 \\ { \not7}^{x} = { \not7}^{3} \\ x= 3[/tex]
[tex] \\ [/tex]
Nomor 8b
[tex] {2}^{x} = 64 \\ { \not2}^{x} = { \not2}^{6} \\ x = 6[/tex]
[tex] \\ [/tex]
Nomor 8c
[tex] {10}^{x} = 10.000 \\ { \cancel{10}}^{x} = { \cancel{10}}^{4} \: \: \: \: \: \\ x = 4 \: \: \: \: \: [/tex]
[tex] \\ [/tex]
Nomor 8d
[tex] {5}^{x} = 625 \\ { \not5}^{x} = { \not5}^{4} \\ x = 4[/tex]
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