Question

Срочно !!!!! Помогите

Answer 1

Ответ:

Объяснение:

((3m)/(m+5) -(8m)/(m²+10m+25)) ÷(3m+27)/(m²-25) +(5m-25)/(m+5)=((m-5)(3m²+22m+135))/(3(m+5)(m+9))

1) (3m)/(m+5) -(8m)/(m²+10m+25)=(3m)/(m+5) -(8m)/(m+5)²=(3m(m+5)-8m)/(m+5)²=(3m²+15m-8m)/(m+5)²=(3m²+7m)/(m+5)²

2) (3m²+7m)/(m+5)² ÷(3m+27)/(m²-25)=(3m²+7m)/(m+5)² ·((m-5)(m+5))/(3m+27)=((3m²+7m)(m-5))/((m+5)(3m+27))

3) ((3m²+7m)(m-5))/((m+5)(3m+27)) +(5m-25)/(m+5)=((3m²+7m)(m-5)+5(m-5)(3m+27))/((m+5)(3m+27))=((m-5)(3m²+7m+15m+135)/((m+5)·3(m+9))=((m-5)(3m²+22m+135))/(3(m+5)(m+9))