\(x^2-x=0\)
\(\Leftrightarrow x\left(x-1\right)=0\)
\(\Leftrightarrow\left\{{}\begin{matrix}x=0\\x-1=0\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x=0\\x=1\end{matrix}\right.\)
áp dụng định lí bezout :
thay x=0 vào \(f\left(0\right)=\left(0+1-1\right)^{10}+\left(0-0+1\right)^{10}=2\)
thay x=1 vào \(f\left(1\right)=\left(1+1-1\right)^{10}+\left(1-1+1\right)^{10}=2\)
\(\Rightarrow f\left(0\right)=f\left(1\right)\)
\(\Rightarrow\)so du la 2