m^2/(20-4m) - 25/(20-4m) = (m^2-25)/(20-4m) = (m-5)(m+5)/(-4(m-5)) = m+5/-4
Ответ:
Пошаговое объяснение:
(m²-25)/ 4* (5-m)=(m-5)(m+5)/4(5-m)= - (m+5)/4.
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m^2/(20-4m) - 25/(20-4m) = (m^2-25)/(20-4m) = (m-5)(m+5)/(-4(m-5)) = m+5/-4
Ответ:
Пошаговое объяснение:
(m²-25)/ 4* (5-m)=(m-5)(m+5)/4(5-m)= - (m+5)/4.