Question

Спростіть вираз 4x+y/2x - 5y^2/x^2 × x/10y

Answer 1

$\displaystyle\bf\\\frac{4x+y}{2x} -\frac{5y^{2} }{x^{2} } \cdot\frac{x}{10y} =\frac{4x+y}{2x} -\frac{5y\cdot y\cdot x}{x\cdot x\cdot5y\cdot 2} =\\\\\\=\frac{4x+y}{2x} -\frac{y}{2x} =\frac{4x+y-y}{2x} =\frac{4x}{2x} =2\\\\\\Otvet \ : \ 2$