F(x)=x2-3x найти f(1)

Question

F(x)=x2-3x найти f(1)

Answer 1

F'(x) = 5*(3x+2)^4*3;
f'(x= -1) = 5*(-3+2)^4*3=15

Answer 2

F’(x)=2x-3
F’(1)=2*1-3=-1