Фотография ниже. ------------>
-(2^2x^6y^2)×0,5x^3y^3=
=-4×0,5x^9у^5=
=2x^9у^5 пользуемся правилами
(ab)^n=a^n×b^n
a^n×a^m=a^(n+m)
= a^6 * x^6
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![\dispaystyle log_{11}(x+4)+log_{11}(x-7)=log_{11}(7-x)](https://tex.z-dn.net/?f=%5Cdispaystyle+log_%7B11%7D%28x%2B4%29%2Blog_%7B11%7D%28x-7%29%3Dlog_%7B11%7D%287-x%29)
найдем ОДЗ
![\dispaystyle \left \{ {{x+4\ \textgreater \ 0} \atop {x-7\ \textgreater \ 0; 7-x\ \textgreater \ 0}} \right.\\ \left \{ {{x\ \textgreater \ -4} \atop {x\ \textgreater \ 7; x\ \textless \ 7}} \right.](https://tex.z-dn.net/?f=%5Cdispaystyle++%5Cleft+%5C%7B+%7B%7Bx%2B4%5C+%5Ctextgreater+%5C+0%7D+%5Catop+%7Bx-7%5C+%5Ctextgreater+%5C+0%3B+7-x%5C+%5Ctextgreater+%5C+0%7D%7D+%5Cright.%5C%5C+%5Cleft+%5C%7B+%7B%7Bx%5C+%5Ctextgreater+%5C+-4%7D+%5Catop+%7Bx%5C+%5Ctextgreater+%5C+7%3B+x%5C+%5Ctextless+%5C+7%7D%7D+%5Cright.++)
Одновременно x>7 и x<7 быть не может. Значит решений нет