作业帮解-log2^[9^(x-1)-5]=-log2^[3^(x-1)]-2
来源：学生作业帮 编辑：作业帮 分类：数学作业 时间：2024/05/12 03:56:26
解-log2^[9^(x-1)-5]=-log2^[3^(x-1)]-2
-log2^[9^(x-1)-5]=-log2^[3^(x-1)]-2
-log2^[9^(x-1)-5]=-log2^[3^(x-1)]-log2^4
-log2^[9^(x-1)-5]=-(log2^[3^(x-1)]+log2^4)
-log2^[9^(x-1)-5]=-log2^[3^(x-1)]*4
log2^[9^(x-1)-5]=log2^[3^(x-1)]*4
[9^(x-1)-5]=[3^(x-1)]*4
[3^(x-1)]^2-4*3^(x-1)-5=0
[3^(x-1)-5][3^(x-1)+1]=0
3^(x-1)=5或3^(x-1)=-1
3^(x-1)=-1无解
3^(x-1)=5
x-1=log3^5
x=log3^5+1=log3^15
-log2^[9^(x-1)-5]=-log2^[3^(x-1)]-log2^4
-log2^[9^(x-1)-5]=-(log2^[3^(x-1)]+log2^4)
-log2^[9^(x-1)-5]=-log2^[3^(x-1)]*4
log2^[9^(x-1)-5]=log2^[3^(x-1)]*4
[9^(x-1)-5]=[3^(x-1)]*4
[3^(x-1)]^2-4*3^(x-1)-5=0
[3^(x-1)-5][3^(x-1)+1]=0
3^(x-1)=5或3^(x-1)=-1
3^(x-1)=-1无解
3^(x-1)=5
x-1=log3^5
x=log3^5+1=log3^15
解方程log2(2-x)=log2(x-1)+1
log2 (x + 3) + log2(x + 2) = 1
方程log2[9^(x-2) +7]=2+log2[3^(x-1) +1]的解为
解方程log2（9x-1-5）=log2（3x-1-2）-2．
解方程：log2（9^（x-1）-5）-log2（3^x +2）-2=0
解方程log2^(4^x+4)=x+log2^[2^(x+1)-3]
解方程log2(4^x+1)=x+log2(2^(x+3)-6)
解方程：log2(4^x+4)=x+log2(2^(x+1)-3)
解方程(1) log2(4²+4)=x+log2(2^x+1-3)
解不等式：|log2（x-1）|+log2（5-x）
不等式log2(2x+3)>log2(x+1)的解集是
解方程：log2(x+4)+log2(x-1)=1+log2(x+8)