Question

giải giúp mình vs ạ💗

Answer 1

\(< =>2x-2\sqrt{x^2-\left(2x-1\right)}=2\)

<=>\(x-1=\sqrt{x^2-2x+1}\)

<=>x-1=|x-1|

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

=> x=1