Question

Find f '(x) for f(x) = 4x3 - 3x2 + 9x - 5. (5 points)

Answer 1

Answer:

f(x) is 9x+1

Step-by-step explanation:

solve for the varible x

(4x3) = 12

(3x2) = 6

12 - 6 + 9x - 5 combind like terms --> 12 - 11 + 9x

1 + 9x

Answer 2

Answer:

12x^2-6x+9

Step-by-step explanation:

f(x) = 4x^3 - 3x^2 + 9x -5

f'(x) = nx^n-1

f'(x) = 12x^2 - 6x + 9