9000079201

Część: 
Project ID: 
9000079201
Accepted: 
1
Clonable: 
0
Easy: 
0
Oblicz \[ \frac{-x^{2}} {x - y} -\frac{y - x} {x + y} \] jeśli \(x = -1\), \(y = 2\).
\(-\frac{8} {3}\)
\(-\frac{10} {3} \)
\(-\frac{2} {3}\)
\(-\frac{4} {3}\)