October 2018 1 66 Report
Tentukan nilai x yg memenuhi persamaan:
a. 2^{-x} \left[\begin{array}{ccc} \frac{1}{4} \end{array}\right]^{x+1}= \frac{1}{32}
b. \frac{(9^{x+2})^{2}}{27^{x}}=81

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