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​

Find the sum of the following polynomials 9m3 2n2 113m5n 12n2m 4 16n 8m 8m3 11m 14n221n15 10ml 11m10n2 11n7 10m3 11m 14n2 21n 15 10m3 11m 10n2 11n 7 class=