对数函数log4 x+log4 (64x²) =6
问题描述：
对数函数log4 x+log4 (64x²) =6
答
log4 x+log4 (64x²) =6
log4 (64x^3)=6
64x^3=4^6
x^3=4^3
x=4
答
即log4(x*64x²)=log4(4^6)
所以64x³=4^6
x³=64
x=4