Question

Помогите сократить дробь скрнин есть

Answer 1

Ответ:

$\displaystyle \frac{57x^4y^7}{-84x^6y^5}=-\frac{57y^2}{84x^2}\\\\\\\frac{4c+3d}{(-3d-4c)^2}=\frac{4c+3d}{(4c+3d)^2}=\frac{1}{4c+3d}\\\\\\\frac{(5a+2b)^2}{(-2b-5a)^2}=\frac{(5a+2b)^2}{(5a+2b)^2}=1\\\\\\\frac{3a-6b}{2ab-a^2-ac+2bc}=\frac{3\, (a-2b)}{-a(a-2b)-c(a-2b)}=\frac{3\, (a-2b)}{-(a-2b)(a+c)}=-\frac{3}{a+c}$