Question

|x - y| + |y + \(\frac{9}{25}\)| = 0

|Cứu tớ vs, ai làm đc tớ cho luôn 3 like , nhá ...... tớ cần gấp gáp lắm|

Answer 1

Vì \(\left|x-y\right|\ge0;\left|y+\frac{9}{25}\right|\ge0\Rightarrow\left|x-y\right|+\left|y+\frac{9}{25}\right|\ge0\)

Mà \(\left|x-y\right|+\left|y+\frac{9}{25}\right|=0\)

\(\Rightarrow\left|x-y\right|=0;\left|y+\frac{9}{25}\right|=0\)

\(\left|y+\frac{9}{25}\right|=0\Rightarrow y=\frac{-9}{25}\)

\(\Rightarrow\left|x-y\right|=\left|x-\frac{-9}{25}\right|=0\Rightarrow x=\frac{-9}{25}\)

Answer 2

=> x = y

mà y + 9/25 = 0

=> y = -9/25

=> x = y = -9/25