Parte:
Project ID:
2010000902
Source Problem:
Accepted:
0
Clonable:
1
Easy:
0
Suponiendo \(x\neq \pm y\) a \(x\neq 0\), simplifica la expresión:
\[ \left ( \frac{y}{y-x} - \frac{2x} {y+x} - \frac{y^{2}} {y^{2} - x^{2}}\right ) : \left ( \frac{1}{x + y} - \frac{y} {y^{2} - x^{2}}\right )\]
\( y-2x\)
\(2x-y\)
\(\frac{2x-y}
{x}\)
\( 0\)