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shinichi_kudo3395


Giải hệ phương trình sau:
[TEX]\left\{\begin{matrix}log_{2}(x+1)=x+y& \\ 9^{1+x-y}-6^{1+x-y}-3^{1+x-y}=6^{1-x+y}+3^{1-x+y}-9^{1-x+y}&\end{matrix}\right.[/TEX]
[TEX]\left\{\begin{matrix}log_{2}(x+1)=x+y& \\ 9^{1+x-y}-6^{1+x-y}-3^{1+x-y}=6^{1-x+y}+3^{1-x+y}-9^{1-x+y}&\end{matrix}\right.[/TEX]
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