Question

Simplifique a fração algébrica: (zy²-yz²) / (z-y)

Answer 1

$\mathtt{\dfrac{z{y}^{2}-y{z}^{2}}{z-y}} \\\mathtt{\dfrac{zy(y - z)}{z - y}=\dfrac{ - zy\cancel{(z - y)}}{ \cancel{z - y}}=-zy}$