4(1/3)^x=324

解答

4 (\frac{1}{3})^{x} = 324

x = - 4

求解步骤

4 (\frac{1}{3})^{x} = 324

两边除以

4

(\frac{1}{3})^{x} = 81

使用指数运算法则

- x = 4

解

- x = 4 : x = - 4

x = - 4

3^{x + 2} = 9^{x - 1}

2^{x + 1} = \frac{1}{2}

\frac{2 ^{x^{2}}}{2 ^{x + 6}} = 1

3 \cdot 2^{4 x} + 2^{2 x} - 10 = 0

8^{3 x - 5} = 4^{x + 3}