x_1=-9 \\ x_1=-3-6=-9 \\ \\ y_2=9 \\ 9x_2=27 => x_2=3 \\ x_2=9-6=3" alt=" \left \{ {{log_3xy=log_327} \atop {x-y+6=0}} \right. \left \{ {{xy=27} \atop {x=y-6}} \right. \\ \\ (y-6)y=27 \\ y^2-6y-27=0 \\ D=36+108=144=12^2 \\ y= \frac{6\pm12}{2} = \left \{ {{y_1=-3} \atop {y_2=9}} \right. \\ \\ \\ y_1=-3 \\ -3x_1=27 => x_1=-9 \\ x_1=-3-6=-9 \\ \\ y_2=9 \\ 9x_2=27 => x_2=3 \\ x_2=9-6=3" align="absmiddle" class="latex-formula">
Ответ:
