Question

Để (x-8)\(^{2016}\)+ \(\sqrt{y-10}\)=0 thì khi đó x+y=....

Answer 1

\(\left(x-8\right)^{2016}+\sqrt{y-10}=0\)

Mà \(\left(x-8\right)^{2016}+\sqrt{y-10}\ge0\)

\(\Rightarrow\left[\begin{matrix}\left(x-8\right)^{2016}=0\\\sqrt{y-10}=0\end{matrix}\right.\Rightarrow\left[\begin{matrix}x-8=0\\y-10=0\end{matrix}\right.\Rightarrow\left[\begin{matrix}x=8\\y=10\end{matrix}\right.\)

\(\Rightarrow x+y=8+10=18\)

Vậy x + y = 18

Answer 2

\(\left(x-8\right)^{2016}+\sqrt{y-10}=0\)

\(\Rightarrow\left\{{}\begin{matrix}\left(x-8\right)^{2016}=0\\\sqrt{y-10}=0\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}x=8\\y=10\end{matrix}\right.\)

\(\Rightarrow x+y=8+10=18\)

Vậy.........................................