Chapter R - Section R.3 - Polynomials - R.3 Exercises - Page 29: 43

6$m^{4}$ - 2$m^{3}$ - 7$m^{2}$ - 4m

1. Group like terms together. (6$m^{4}$ - 3$m^{2}$ + m) - (2$m^{3}$ + 5$m^{2}$ + 4m) + ($m^{2}$ - m) = 6$m^{4}$ - 2$m^{3}$ + (-3$m^{2}$ - 5$m^{2}$ + $m^{2}$) + (m - 4m - m) 2. Add like terms. 6$m^{4}$ - 2$m^{3}$ - 7$m^{2}$ - 4m