Ответ:
Объяснение:
(3n²-3m²)/(n²+np) : (6m-6n)/(n+p)=3(n²-m²)/n(n+p) : 6(m-n)/(n+p)=
=3(n-m)(n+m)/n(n+p) * (n+p)/2(m-n)= -(m-n)(n+m)/n * 1/2n=-(n+m)/2n
-(n+m)/2n=-(-3+(-9))/2*(-3)=-(-12)/-6=12/-6=-2 pri:m=-9 , n=-3
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Ответ:
Объяснение:
(3n²-3m²)/(n²+np) : (6m-6n)/(n+p)=3(n²-m²)/n(n+p) : 6(m-n)/(n+p)=
=3(n-m)(n+m)/n(n+p) * (n+p)/2(m-n)= -(m-n)(n+m)/n * 1/2n=-(n+m)/2n
-(n+m)/2n=-(-3+(-9))/2*(-3)=-(-12)/-6=12/-6=-2 pri:m=-9 , n=-3