\(\left(x+1\right)\left(2x-x+1\right)-2x=x\left(x+1\right)\left(x-1\right)\)
\(x^2+2x+1-2x=x^3-x\)
\(x^2+1-x^3+x=0\)
\(x^2.\left(1+x\right)+\left(1+x\right)=0\)
\(\left(x^2+1\right).\left(1+x\right)=0\)
\(\Leftrightarrow\left[{}\begin{matrix}x^2+1=0\\1+x=0\end{matrix}\right.\) \(\Leftrightarrow\left[{}\begin{matrix}x^2=1\\x=-1\end{matrix}\right.\)
\(\Leftrightarrow x=1\)
\(\left(x+1\right)\left(2x-x+1\right)-2x=x\left(x+1\right)\left(x-1\right)\)
\(\Leftrightarrow2x^2-x^2+x+2x-x+1-2x=x^3-x\)
\(\Leftrightarrow x^2-x^3+x+1=0\)
Có vẻ như không có kết quả bạn ạ!
Ai đó giúp mk giải pt này với🥺🥺😢
