Question

Помогите пожалуйста! Срочно!

Answer 1

Объяснение:

3х/(у-3х) ÷ 12х/(ху-3х²) =3х/(у-3х)×х(у-3х)/12х =х/4

-44/4=-11

(аb-8b²)/15b÷(a-8b)/5b=(b(a-8b))/15b × 5b/(a-8b)=b/3

0,3/3=0,1

(a²-25)/(5a²+25a)=(a-5)(a+5) / 5a(a+5)=(a-5)/5a

(0,8-5)/5×0,8=-4,2/4=-1,05

(c+7p)/cp × 8c²p/(c²-49p²)=(c+7p)/cp × 8c²p/(c+7p)(c-7p)=8c/(c-7p)

8×1,3/(1,3-7×(-2,1))=13/20