Question

Спростить вираз на фото

Answer 1

$\displaystyle\bf\\\Big(\frac{x^{2} }{y^{2} }+\frac{x}{y} \Big):\Big(\frac{y^{2} }{x^{2} }+\frac{y}{x} \Big)=\frac{x^{2}+xy }{y^{2} }:\frac{y^{2}+xy }{x^{2} } =\\\\\\=\frac{x\cdot(x+y)}{y^{2} } \cdot\frac{x^{2} }{y\cdot(y+x)}=\frac{x^{3} }{y^{3} } \\\\\\Otvet \ : \ 4$