Ответ:
Объяснение:
(m²-1)/(m-n) * (2m-2n)/m²+m)= (m-1)(m+1)/(m-n) * 2(m-n)/m(m+1)=
=2(n-1)/m
2) (6a²/b)² * (2b/3a³)³= 36a^4/b² * 8b³/27a^9 = =4a^4/b² * 8b³/3a^9= 32b/3a^5
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Ответ:
Объяснение:
(m²-1)/(m-n) * (2m-2n)/m²+m)= (m-1)(m+1)/(m-n) * 2(m-n)/m(m+1)=
=2(n-1)/m
2) (6a²/b)² * (2b/3a³)³= 36a^4/b² * 8b³/27a^9 = =4a^4/b² * 8b³/3a^9= 32b/3a^5