Question

f(x) = -x^3 + 3x + 2
aratati ca F'(x) = 3(1-x)(1+x)
o explicatie concreta va rog?

Answer 1

   
[tex]\displaystyle\\ f(x) = -x^3 + 3x + 2\\ f'(x)=-3x^2+3 = 3-3x^2 = 3(1-x^2)=\boxed{3(1-x)(1+x)}[/tex]