log(X+5)+log(X+2)=1

log(X+5)+log(X+2)=1 log（x+5）=log（x）+log（2） log（8）+log（x）=log（24） 2log（x）=log(2x)+log(3) log(0.1)log(0.2)log(0.5)(1/根号5次2）=x,求x的值 已知log(2){log(3)[log(4)(x)]}=5^0,则x=? 于是f(x)=9[log(4,x)]^2-[log(2,x)]^2=9[1/2*log(2,x)]^2-[log(2,x)]^2=5/4*[log(2,x)]^2 怎么得的? 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, 1/log（2）x+1/log（3）x+1/log（4）x=1,x=? log(0.5x)(2)-log(0.5x^3)(x^2)=log(0.5x^3)(4) [( log(x^2) + log(x^4) )/ log(100 x)] = 4 求X Solutions...6/{(1+log x)(5-log x)}+1/(1+log x)=1method of this equation.. 比较大小 f(x)=log(a)(x+5),g(x)=log(a)(2x-1) 解方程log(x+1)-log(x-1)=1. solve:log(x)+log(2x)=2 log 9 X/Y=1/2(log 3 X - log 3 Y) log 9 X/Y=1/4 3log 3 X =2log 3 Y find X and Y 2log^(x^2) = 3{2^(1+log x)} + 16 2log^(x^2) = 3{2^(1+log x)} + 16 化简:1/log(3)x 1/log(4)x 1/log(5)x=……(答案是1/log(60)x 已知log(a)x=1,log(b)x=2,log(c)x=4,则log(abc)x=? x=log a 2