\(y^2+4^x+2y-2^{x+1}+2=0\)
\(\Leftrightarrow y^2+2y+1+4^x-2^x\cdot2+1=0\)
\(\Leftrightarrow\left(y+1\right)^2+\left(2^x-1\right)^2=0\)
\(\Leftrightarrow\left\{{}\begin{matrix}y+1=0\\2^x-1=0\end{matrix}\right.\)
\(\Leftrightarrow\left\{{}\begin{matrix}y=-1\\2^x=1\end{matrix}\right.\)
\(\Leftrightarrow\left\{{}\begin{matrix}y=-1\\x=0\end{matrix}\right.\)