Question

Need help badly image above

Answer 1

2m³ + 9m² - 19m - 11

Explanation:

3f(m) - 2g(m)

= 3(3m² - 5m + 1) - 2(- m³ + 2m + 7) ← distribute parenthesis

= 9m² - 15m + 3 + 2m³ - 4m - 14 ← collect like terms

= 2m³ + 9m² - 19m - 11