kak tolong di bantu lagi.. carilah nilai x

Eksponen

1||

[tex] 4^{x} [/tex] = [tex] \frac{1}{16} [/tex]
[tex] 4^{x} [/tex] = [tex] 16^{-1} [/tex]
[tex] 4^{x} [/tex] = (4²)[tex] ^{-1} [/tex]
[tex] 4^{x} [/tex] = [tex] 4^{-2} [/tex]
                     x  = -2

2||

x^-3 = 1/27
x^-3 = 27^-1
x^-3 = (3^3)^-1
x^-3 = 3^-3
    x  = 3


3||

2^x = 1/16
2^x = 16^-1
2^x = (2^4)^-1
2^x = 2^-4
   x = -4


4||

x^-3 = 1/-8
x^-3 = -(8^-1)
x^-3 = - (2^3^-1)
x^-3 = - (2^-3)
    x = -2


5||

5^x = 1/625
5^x = 625^-1
5^x = (5^4)^-1
5^x = 5^-4
   x  = -4


Semoga Membantu!!!