9000079201

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Project ID: 
9000079201
Accepted: 
1
Clonable: 
0
Easy: 
0
Určte hodnotu výrazu \(\frac{-x^{2}} {x-y} -\frac{y-x} {x+y}\) pre \(x = -1\), \(y = 2\).
\(-\frac{8} {3}\)
\(-\frac{10} {3} \)
\(-\frac{2} {3}\)
\(-\frac{4} {3}\)