log_{10}(x-10)=1

解答

lo g_{10} (x - 10) = 1

x = 20

求解步骤

lo g_{10} (x - 10) = 1

使用对数运算法则

x - 10 = 10

解

x - 10 = 10 : x = 20

x = 20

lo g_{x} (\frac{1}{81}) = 4

6 = ln (s)

9^{l o g_{3} (x)} = x - 2 x^{2} + 4

ln (3 x - 14) = 4

3 lo g_{10} (x) = 6