Выполни сложение и вычитание алгебраических дробей. \dfrac{4a}{5a+5}+\dfrac{2a-1}{a+1}= . \dfrac{5+x^2}{x^2-36}-\dfrac{x}{x+6}= . \dfrac{m^2}{m^3-9m}-\dfrac{1}{2m-6}= . \dfrac{29+n^2}{36-12n+n^2}-\dfrac{2(5n-1)}{n^2-12n+36}+\dfrac{5-2n}{(6-n)^2}= . \dfrac{2b^2+7b+9}{b^3-1}+\dfrac{4b+3}{b^2+b+1}-\dfrac{5}{b-1}= .

Задание

Выбери правильные ответы

Выполни сложение и вычитание алгебраических дробей.

\(\dfrac{4a}{5a+5}+\dfrac{2a-1}{a+1}=\) [ \(\frac{a-5}{14a+5}\) | \(\frac{14a+5}{5a-5}\) | \(\frac{a+5}{14a-5}\) | \(\frac{14a-5}{5a+5}\) ].
\(\dfrac{5+x^2}{x^2-36}-\dfrac{x}{x+6}=\) [ \(\frac{6x+5}{x^2-36}\) | \(\frac{2x^2-1}{x^2+36}\) | \(\frac{-1}{x^2+36}\) | \(\frac{6x-5}{x^2+36}\) ].
\(\dfrac{m^2}{m^3-9m}-\dfrac{1}{2m-6}=\) [ \(\frac{1}{m+3}\) | \(\frac{1}{2(m+3)}\) | \(\frac{2m}{m+3}\) | \(\frac{m}{2(m+3)}\) ].
\(\dfrac{29+n^2}{36-12n+n^2}-\dfrac{2(5n-1)}{n^2-12n+36}+\dfrac{5-2n}{(6-n)^2}=\) [ \(\frac{1}{(n-6)^2}\) | \(\frac{1}{n-6}\) | \(1\) | \(-1\) ].
\(\dfrac{2b^2+7b+9}{b^3-1}+\dfrac{4b+3}{b^2+b+1}-\dfrac{5}{b-1}=\) [ \(\frac{b-1}{b+1}\) | \(\frac{1}{b+1}\) | \(\frac{1}{b-1}\) | \(\frac{b+1}{b-1}\) ].