Me 1) (8c^2 + 10) - (14 + 4c^2) 2) (15m^4 - 3m) - (9m-5m^4) 3) (-9a^2 + 8a + 4a^3) + (-10 - 10a^3 - 10a^2) 4) (-10a^2 - 2b) + (-3ab - 4a^2 + 5b^2) (-b^2 + 3ab) 5) (a^3 - 2a^2) - (3a^2 - 4a^3

Combine like terms by adding their FACES (Coefficients)

1) 4c² - 4               
2) 20m^4 + 6m
3) -6a³ - 19a² + 8a - 10
4) -10a² - 2b + 3ab³ + 4a²b² -5b^4 - 9a²b² - 12a³b + 15ab³ = -10a² - 2b + 18ab³ - 5a²b² - 12a³b - 5b^4
5) 5a³ - 5a²