Question

выполните действие
РЕШЕНИЕ


ПОМОГИТЕ СРОЧНО!!!!!!!!!!!!!!!

Answer 1

$\(\frac{6}{a^2+3a}-\frac{2}{a}=\frac{6}{a(a+3)}-\frac{2}{a}=\frac{6}{a(a+3)}-\frac{2(a+3)}{a(a+3)}=\frac{6-2(a+3)}{a(a+3)}=\frac{6-2a-6}{a(a+3)}=\frac{-2a}{a(a+3)}=\frac{-2}{a+3}\)$

$\(\frac{a+c}{ac}\cdot \frac{5ac^2}{a^2-c^2}=\frac{a+c}{ac}\cdot \frac{5ac^2}{(a-c)(a+c)}=\frac{(a+c)5ac^2}{ac(a-c)(a+c)}=\frac{5c}{a-c}\)$