(Solved): Calculate the difference quotient for f(x)=5x2 at a=1. (Express numbers in exact form. Use s ...

Calculate the difference quotient for $$f(x)=5x^{?2}$$ at $$a=?1$$. (Express numbers in exact form. Use symbolic notation and fractions where needed.) $$\frac{f(?1+h)?f(?1)}{h}=?\frac{5(2x+a)}{x^2(x+a{)}^2}$$ Incorrect Calculate $$f^{?}(?1)$$ by finding the following limit. $$\underset{h?0}{\lim }\frac{f(?1+h)?f(?1)}{h}$$ (Give an exact answer. Use symbolic notation and fractions where needed.)