filamarloubert21 filamarloubert21 18-09-2020 Mathematics contestada Find the sum of the following polynomials. (-9m3 - 2n2 - 11+3m-5n) + (12n2-m +4 + 16n +8m) -8m3 + 11m - 14n2-21n-15 10ml + 11m-10n2 - 11n-7 10m3 + 11m - 14n2 - 21n - 15 - 10m3 + 11m + 10n2 +11n - 7