Предмет: Алгебра, автор: rhnfdjdfkl

разложите многочлен на множители с подробным решением
m (m+n) + n(m+n) - 9 (m в квадрате)

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Автор ответа: sedinalana
0
m (m+n) + n(m+n) - 9 m²=(m+n)(m+n)-9m²=(m+n)²-9m²=
=(m+n-3m)(m+n+3m)=(n-2m)(n+4m)
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