Lg3(5-x)+log3(-1x-x)=3 3 маленькая Очень срочно помните плз

[latex]\log_3(5-x)+\log_3(-1-x)=3, \\ \left \{ {{5-x\ \textgreater \ 0,} \atop {-1-x\ \textgreater \ 0;}} \right. \left \{ {{x\ \textless \ 5,} \atop {x\ \textless \ -1;}} \right. x\ \textless \ -1; \\ \log_3(5-x)(-1-x)=\log_33^3, \\ x^2-4x-5=27, \\ x^2-4x-32-0, \\ x_1=-4, \ \ x_2=8\ \textgreater \ -1, \\ x=-4.[/latex]