Answer:
g'(n) = 3n(6 + 7n)
Step-by-step explanation:
g(n) = 9n² + 7n³
g'(n) = 18n + 21n²
»g(n) = 9n² + 7n³
»g'(n) = 9(2)n + 7(3)n²
»g'(n) = 18n + 21n²✅
