作业帮log2(x^2-2)=log2(10x+8)-1 我算不出来.
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log2(x^2-2)=log2(10x+8)-1 我算不出来.
log2(x^2-2)=log2(10x+8)-1
我算不出来.
log2(x^2-2)=log2(10x+8)-1 我算不出来.
log2(10x+8)-log2(x^2-2)=1
log2[(10x+8)/(x^2-2)]=1
(10x+8)/(x^2-2)=2
10x+8=2x^2-4
2x^2-10x-12=0
x^2-5x-6=0
(x-6)(x+1)=0
解得：x=6
x=-1不合题意舍去
log2 (x + 3) + log2(x + 2) = 1log2 (x + 3) + log2(x + 2) = 1
log2(x – 2 ) + 2 = log2(5)log2(x – 2 ) + 2 = log2(5)
log2(x – 2 ) + 2 = log2(5)log2(x – 2 ) + 2 = log2(5)
log2 4+log2 (x+2)怎么算?log2 4+log2 (x+2)=log2 (4x+8)
log2(2x)*log2(x)=2 x=?
f(x)=log2(x/8)*log2(2/x)
|2x-log2^x|
|[log2(x)]^2-3log2(x)+1|
化简：(log2(x/4))*(log2(x/2))
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求解log2(3x)=log2(2x+1)
解方程log2(2-x)=log2(x-1)+1
解2log2^(x-5)=log2^(x-1)+1
log2^(x^log2^x)=?
解方程log2(x+14)-log2(x+6)=3-log2(x+2)
log2(2X-1)
log2(x^2)图像
log2(x-2)