Алгебра: Очень срочно нужно!!!

$log_2^2(x-1)-log_{0,5}^2(x-1)\ \textgreater \ 2\\ODZ:\\x-1\ \textgreater \ 0\\x\ \textgreater \ 1\\log_2^2(x-1)-log_{2^{-1|}}(x-1)\ \textgreater \ 2 \\log_2^2(x-1)+log_2(x-1)\ \textgreater \ 2\\log_2(x-1)=t\\t^2+t\ \textgreater \ 2\\t^2+t-2\ \textgreater \ 0\\t^2+t-2=0\\a+b+c=0\\t=1\\t=-2$
t∈(-∞;-2)∪(1;+∞)
$\left \{ {{lo_2(x-1)\ \textless \ -2} \atop {log_2(x-1)\ \textgreater \ 1}} \right. \left \{ {{x\ \textless \ \frac{5}{4} } \atop {x\ \textgreater \ 3}} \right. \\$
x∈(1;5/4)∪(3;+∞)