PLZ ANSWER I WILL GIVE BRAINLIEST AND 100 POINTS!
Multiply and simplify

5m^3n(3m^4n − 4n^3 + 2m^5n^2)
15m□n□−20m□n□+10m□n□
Enter your answers in the boxes. Simply write the number that goes in the exponent box.

15m□
n□
−20m□
n□
+10m□
n□