Question

алгебра срочноо Сократите дробь ​

Answer 1

Ответ:

$\dfrac{2m+14}{m^2-49}=\dfrac{2(\, m+7)}{(m-7)(m+7)}=\dfrac{2}{m-7}\\\\\\\dfrac{a+b}{a^2-b^2}=\dfrac{a+b}{(a-b)(a+b)}=\dfrac{1}{a-b}\\\\\\\dfrac{a^2+10a+25}{a^2-25}=\dfrac{(a+5)^2}{(a-5)(a+5)}=\dfrac{a+5}{a-5}\\\\\\\dfrac{x-a}{x^2-2ax+a^2}=\dfrac{x-a}{(x-a)^2}=\dfrac{1}{x-a}$