log(2)(x-1)=log(2)(x2+2x-3)求解!要步骤!谢谢

log(X+5)+log(X+2)=1 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（x+5）=log（x）+log（2） log（8）+log（x）=log（24） 2log（x）=log(2x)+log(3) 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 solve:log(x)+log(2x)=2 x=log a 2 log根号2（X-1) log(2)(x)log(2)(4x)-3log(2)(x)-12=0 (log(2)(x))^3-4(log(4)(x))^2+log(16)(x)=0 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(m)y-log(m)x-log(m)z 2log^(x^2) = 3{2^(1+log x)} + 16 2log^(x^2) = 3{2^(1+log x)} + 16 已知log(a)x=1,log(b)x=2,log(c)x=4,则log(abc)x=? 已知log a x=2,log b x=1,log c x=4,求log abc x 的值 2log(b)x=log(a)x+log(c)x求证,c^2=(ac)^[log(a)b] 已知log（2）[log（3)(log(4) x)] = log(3) [log(4) (log(2) y)]=0,求x+y的值