Level:
Project ID:
2010000812
Source Problem:
Accepted:
0
Clonable:
1
Easy:
0
Assuming \( y \neq 1\), \(x\neq \pm y\), simplify the expression:
\[\frac{y^2-2xy+x^2}{(1-y)(y-x)}\cdot\frac{3y^2-6y+3}{x^2-y^2}\]
\(\frac{3(y-1)}{x+y}\)
\(\frac{3(1-y)}{x+y}\)
\(\frac{3}{x+y}\)
\( 3\)