Giải hệ phương trình

[tuoibietbuon]

\[\left\{\begin{matrix}(1+4^{2x-y}).5^{1-2x+y}=1+2^{2x-y+1} & & \\ y^3+4x+1+ln(y^2+2x)=0& & \end{matrix}\right.\]

 

[duong0510]

\[\left\{\begin{matrix}(1+4^{2x-y}).5^{1-2x+y}=1+2^{2x-y+1} & & \\ y^3+4x+1+ln(y^2+2x)=0& & \end{matrix}\right.\]

 

[stupid_girl]

oh hinh nhu lam sai mat roi
5^(1-2x+y) dat t=2x-y thi phai bang 5^(1+t) ma
phai hong ta