Задание
Выбери верные ответы
Выполни сложение и вычитание многочленов.
- \({\left(\dfrac{7}{8}x^3y^2-\dfrac{5}{6}xy^2\right)\mathrlap{\;-}}\) \({-~\left(-\dfrac{7}{12}xy^2+\dfrac{5}{12}x^3y^2\right)=}\) [ \(\frac{1}{24}x^3y^2-\frac{1}{6}xy^2\) | \(\frac{11}{24}x^3y^2-\frac{1}{4}xy^2\) | \(\frac{1}{4}x^3y^2-\frac{11}{24}xy^2\) ].
- \({\left(\dfrac{3}{7}mn^2-\dfrac{1}{8}mn\right)\mathrlap{\;-}}\) \({-~\left(\dfrac{4}{21}mn^2+\dfrac{1}{4}mn\right)\mathrlap{\;-}}\) \({-~\left(\dfrac{1}{16}mn+\dfrac{3}{14}mn^2\right)=}\) [ \(\frac{1}{42}mn^2-\frac{7}{16}mn\) | \(-\frac{1}{42}mn-\frac{7}{16}mn^2\) | \(\frac{1}{42}mn+\frac{7}{16}mn^2\) ].