Question

[tôm ảo ma]

x mũ 50=x giải hộ mình với???

Answer 1

[Vũ Đức Thịnh]

a có : x50 = x

=> x⁵⁰ - x = 0

=> x.(x⁴⁹-1)=0

\(\Rightarrow\left[{}\begin{matrix}x=0\\x^{49}-1=0\end{matrix}\right.\Rightarrow\left[{}\begin{matrix}x=0\\x^{49}=1\end{matrix}\right.\left[{}\begin{matrix}x=0\\x=1\end{matrix}\right.\)

Answer 2

[Chuu]

`x^50 = x`

`x^50 -x=0`

`x.(x^49-1)=0`

`=>`\(\left[{}\begin{matrix}x=0\\x^{49}-1=0\end{matrix}\right.\)

`=>`\(\left[{}\begin{matrix}x=0\\x^{49}=0+1=1\end{matrix}\right.\)

`=>`\(\left[{}\begin{matrix}x=0\\x^{49}=1^{49}\Rightarrow x=1\end{matrix}\right.\)

Vậy `x = {0;1}`