log 8 16=x 怎么解

log 8 16=x 怎么解 log(p)8*log(16)p怎么解 2log(x)(25)-3log(25)(x)=1怎么解X啊.急 解方程3log(x)4+2log(4x)4+3log(16x)4=0 log(9)x+log(x^2)3=1的解为?原方程可可化为log(3 ²)x+log(x)²3=1 ,∴1/2*log(3)X+1/2*log(x)3=1,∴[log(3)x]²-2log(x)3+1=0,即[log(3)x-1]²=0请问这里的[log(3)x]²-2log(x)3+1=0是怎么推出来的,刚学基础不好, 2 log(3x)= log 4 +log(6-x)怎么求...急 log（x+5）=log（x）+log（2） log（8）+log（x）=log（24） 2log（x）=log(2x)+log(3) 解方程log(x+1)-log(x-1)=1. (log(2)(x))^3-4(log(4)(x))^2+log(16)(x)=0 4^log(4)[x^2]+3^log(9)[6x]=log(2)[16] 第2第3项 怎么处理的? log(2x)+log(3y)-log(2z) 怎么化简?log3(x^2-2x-6)=2 log(3x+6)=1+log(x)求解,求每步详...log(2x)+log(3y)-log(2z) 怎么化简?log3(x^2-2x-6)=2 log(3x+6)=1+log(x)求解, log(3)4*log(4)8*log(8)M =log(2)16 M是多少呃.... log(4)y+log(2y)=9怎么解 解方程2log(x)8-3log(8)X=1.(提示：设log(x)8=t,用换元法） 解方程：log以2为底的x+2*log以4为底的x+log以8为底的x=7 数学y=log(3)x+4log(x)3怎么化成y=log(3)x+4/log(3)x? 解对数方程log【x】（x²-x）=log【8】2根号2 【】内为底数 解方程x=log(x)