3^m=6,3^n=4求3^3m-n的值

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3^m=6,3^n=4求3^3m-n的值3^m=6,3^n=4求3^3m-n的值3^m=6,3^n=4求3^3m-n的值3^m=6,3^n=4,求3^3m-n把括号加上1/x-2+2=1/2-x是不是

3^m=6,3^n=4求3^3m-n的值
3^m=6,3^n=4求3^3m-n的值

3^m=6,3^n=4求3^3m-n的值

3^m=6,3^n=4,求3^3m-n把括号加上
1/x-2+2=1/2-x是不是
1/(x-2)+2=1/(2-x)
1/(x-2)+1/(x-2)=-2
1/(x-2)=-1
x-2=-1
x=1

3^m=6,3^n=4,求3^3m-n把括号加上
1/x-2+2=1/2-x是不是
1/(x-2)+2=1/(2-x)
1/(x-2)+1/(x-2)=-2
1/(x-2)=-1
x-2=-1
x=1