e^x=e^{4-x}

解答

e^{x} = e^{4 - x}

x = 2

求解步骤

e^{x} = e^{4 - x}

使用指数运算法则

x = 4 - x

解

x = 4 - x : x = 2

x = 2

\frac{3 ^{x}}{9 ^{2 x + 3}} = 1

6^{x} = 6

6 4^{x^{2}} = 1 6^{x^{2} + 2 x}

\frac{5 ^{2 - x}}{5 ^{x}} = 5^{16}

2^{4 x - x^{2}} = 8