Question

find f '(x) from : f (x) = 3x (x ^ 3-1)

Answer 1

12x^3-3 using product rule

Answer 2

f (x) = 3x (x ^ 3-1)
=3x^4 -3x
f'(x)=12x-3

Answer 3

mark 12x^3 dude

Answer 4

Or easy to understand is ... multiply it to get f9x0 = 3x^4-3x and then differentiate to get 12x-3. (Remember d/dx(x^n) = nx^(n-1)

Answer 5

ok... good job mark...