Какое из выражений записано верно? А) a + bc -d(m + n) = ac + bc - dm - dn
Б) (A + b)c - d(m - n) = ac - dm + bc + dn
В) a + b(c - d)m + n = a + bmc -bdm + n
Г) (a + b)c - d(m + n) = ab + c - d + mn
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