Question

7c+13c-2 дробь c-7c`2=

Answer 1

 (7c+13c-2)/(c-7c^2) = (20c-2)/(c-7c  ^2)  дальше больше никак! 

Answer 2

$frac{7c 13c-2}{c-7<var><img src=$c^{2}" title="frac{7c+13c-2}{c-7$<var>c^{2}" alt="frac{7c+13c-2}{c-7<var>[tex]<var>c^{2}" /></var>}</var>" title="<var>c^{2}" title="frac{7c+13c-2}{c-7<var>[tex]<var>c^{2}" alt="frac{7c+13c-2}{c-7<var>[tex]<var>c^{2}" /></var>}</var>" alt="<var>c^{2}" title="frac{7c+13c-2}{c-7<var>[tex]<var>c^{2}" alt="frac{7c+13c-2}{c-7<var>[tex]<var>c^{2}" /></var>}</var>" /> =   [tex]frac{20c-2}{c-7<img src=$c^{2}" title="frac{20c-2}{c-7[tex]c^{2}" alt="frac{20c-2}{c-7[tex]c^{2}" />}" title="c^{2}" title="frac{20c-2}{c-7[tex]c^{2}" alt="frac{20c-2}{c-7[tex]c^{2}" />}" alt="c^{2}" title="frac{20c-2}{c-7[tex]c^{2}" alt="frac{20c-2}{c-7[tex]c^{2}" />}" /> 
Если бы вместо - и + было *, то мы бы смогли сократить!