Question

I will type question,Please! help

Answer 1

\[y=\log _{2^{x-1}}\]\[y=\log _{2}^{(x-1)}\]what difference bewteen , one have Parentheses and one don't have Parentheses

Answer 2

\[(\log_{2}x)-1\]
\[\log_{2}(x-1)\]

Answer 3

First one is same as
\[2^{(y+1)}=x\]
Second one is same as
\[2^{y}=x-1\]

Answer 4

Can you come back help!