Question

x²³=x⁶

 

Answer 1

\(x^{23}=x^6\)

\(\Rightarrow x^{23}-x^6=0\)

\(\Rightarrow x^6\cdot\left(x^{17}-1\right)=0\)

\(\Rightarrow\left[{}\begin{matrix}x^6=0\\x^{17}-1=0\end{matrix}\right.\)

\(\Rightarrow\left[{}\begin{matrix}x=0^6\\x^{17}=1\end{matrix}\right.\)

\(\Rightarrow\left[{}\begin{matrix}x=0\\x=1^{17}\end{matrix}\right.\)

\(\Rightarrow\left[{}\begin{matrix}x=0\\x=1\end{matrix}\right.\)

Answer 2

=>x^6(x^17-1)=0

=>x=0 hoặc x=1