Задание
Выбери верные ответы
Выполни действия:
\(\dfrac{y-18}{6y^2}-\dfrac{2-3y}{y^3}=\) [ \(\frac{4y-20}{6y^5}\) | \(\frac{y^2-12}{6y^3}\) | \(\frac{y^2-2}{y^3}\) | \(\frac{y^2—36y-12}{6y^3}\) ];
\(\dfrac{b-7}{b+7}-\dfrac{b^2+49}{b^2+14b+49}=\) [ \(\frac{98}{(b+7)^2}\) | \(-\frac{98}{(b+7)^2}\) | \(0\) | \(\frac{b-b^2+42}{(b+7)(b^2+14b+49)}\) ];
\(\dfrac{24x^2}{6x-3}-4x=\) [ \(\frac{4x}{2x-1}\) | \(\frac{12x}{6x-3}\) | \(\frac{24x^2-4x}{(6x-3}\) ].