SOLUTION: please help me solve this problem and please help me work it out. f(x)=x^2-x-12 all over x

Algebra ->  Rational-functions -> SOLUTION: please help me solve this problem and please help me work it out. f(x)=x^2-x-12 all over x      Log On


   

Question 668600: please help me solve this problem and please help me work it out. f(x)=x^2-x-12 all over x
Answer by lynnlo(4176) About Me  (Show Source):
You can put this solution on YOUR website!
f(x)=x^2-12/x
d/dx(x^2)-12(d/dx(1/x))
d/dx(x^2)-12(-1/x^2
12/x^2+2x