letalAlmeK9eita letalAlmeK9eita 19-01-2017 Mathematics contestada Factor the four-term polynomial. mn - 15 + 3m - 5nmn-15+3m-5n Let's rearrange the terms mn + 3m - 15 - 5n = m*(n + 3) - 5(n + 3) = (m - 5)(n + 3)