Question

Let f(x) =2x^2. Simplify the expression f(x+h)-f(x)/h

Answer 1

replace x by (x+h) in f(x) equation
\[\huge\rm f(x) = 2x^2\]
replace x by (x+h)

Answer 2

Because \(f(x)=2x^2\), you can start with:
\(\dfrac{f(x+h)-f(x)}{h}=\dfrac{2(x+h)^2-2x^2}{h}\).

Now look at this thing and think of what you can do with it...

Answer 3

Is this going to be the answer 2(h+2x)?? @Nnesha