Question 1033171
1. {{{y=18x^2+100x^(-1)}}}
{{{dy/dx=36x-100x^(-2)}}}
{{{dy/dx=36x-100/x^(2)}}}
2.{{{36x-100/x^2=0}}}
One
3. Nature?
4. {{{36x=100/x^2}}}
{{{x^3=100/36}}}
{{{x^3=25/9}}}
{{{x=(25/9)^(1/3)}}}
5. I leave that to you.