Question

I NEED HELP PLEASE
f(x)=5x-x^2, f(5+h)-f(5) all over (h) h cannot = 0
go over step by step so i know how to do this

Answer 1

first find f(5+h)
f(5+h) means x = 5+h so substitute x for 5+h into f(x) function

Answer 2

\[\huge\rm f(\color{ReD}{x})=5\color{ReD}{x}-\color{ReD}{x}^2\]
to find f(5+h) x with 5+h \[\huge\rm f(\color{ReD}{5+h})=5(\color{ReD}{5+h})-(\color{ReD}{5+h})^2\]
distribute and then combine like terms
to find f(5) replace x with 5