Find f'(x):
f(x)=3(2x^25x+1)
I am not sure if the 5x is multiplied to the 2x^2 (I got f'(x)=90x^2) or there is a typo.
It makes no sense the way it is written. I wonder if it is meant to be
f(x)=3(2x2(5x +1))
But without clarification, it is not possible to find the derivative.