Сократите дробь:
а) $\frac{-ax - bx}{ay + by}$;
б) $\frac{4x^2y - 4x^3}{12x^2y^2 - 12xy^3}$;
в) $\frac{m^5 - 3m^2}{2m^7 - 6m^4}$;
г) $\frac{3n^6 + 2n^4}{15n^8 + 10n^6}$.
$\frac{-ax - bx}{ay + by} = \frac{-x(a + b)}{y(a + b)} = -\frac{x}{y}$
$\frac{4x^2y - 4x^3}{12x^2y^2 - 12xy^3} = \frac{4x^2(y - x)}{12xy^2(x - y)} = -\frac{4x^2(x - y)}{12xy^2(x - y)} = -\frac{x}{3y^2}$
$\frac{m^5 - 3m^2}{2m^7 - 6m^4} = \frac{m^2(m^3 - 3)}{2m^4(m^3 - 3)} = \frac{m^2}{2m^4} = \frac{1}{2m^2} $
$\frac{3n^6 + 2n^4}{15n^8 + 10n^6} = \frac{n^4(3n^2 + 2)}{5n^6(3n^2 + 2)} = \frac{1}{5n^2}$
Пожауйста, оцените решение
