What are the critical values, if any, of #f(x)=(3x^2+2x+5)/(4x^2+2x+1)#?
In order to find the critical points, you need to find the derivative, f' of the function.
Here, you do so by applying the quotient rule.
When you apply the quotient rule, you should obtain the equation of
Solve for zeros
Then, plug in the values that make x zero into the original equation and you should obtain a max point of (-0.239,6.254)