Question

/x+2/ + /y+5/ = 0

Answer 1

\(\left|x+2\right|+\left|x+5\right|=0\)

\(\Rightarrow\orbr{\begin{cases}x+2=0\\y+5=0\end{cases}}\)

\(\Rightarrow\orbr{\begin{cases}x=2\\y=5\end{cases}}\)

Answer 2

Ta có:\(\hept{\begin{cases}\left|x+2\right|\ge0\\\left|y+5\right|\ge0\end{cases}\Rightarrow\left|x+2\right|+\left|y+5\right|\ge0}\)

Dấu "=" xảy ra khi \(\hept{\begin{cases}\left|x+2\right|=0\\\left|y+5\right|=0\end{cases}}\)

\(\Rightarrow\hept{\begin{cases}x+2=0\\y+5=0\end{cases}\Rightarrow\hept{\begin{cases}x=-2\\y=-5\end{cases}}}\)

Answer 3

                           Vì \(\left|x+2\right|+\left|y+5\right|=0\)

                          \(\Rightarrow\orbr{\begin{cases}x+2=0\\y+5=0\end{cases}}\)

                        \(\Rightarrow\orbr{\begin{cases}x=-2\\y=-5\end{cases}}\)

                   Vậy \(x=-2;y=-5\)

                     Ủng hộ mk nha !!!

Answer 4

\(x+2=y+5\)

=>\(x+2=0=>x=-2\)

=> \(y+5=0=>y=-5\)