Problem
If $f(x)=x^{2}$. Find (a) $f(x+h)$
Solution
Step 1 ：Replace x with (x+h) in the given function f(x)=x^2: f(x+h) = (x+h)^2
Step 2 ：\(\boxed{f(x+h) = (x+h)^2}\)
Step 1 ：Replace x with (x+h) in the given function f(x)=x^2: f(x+h) = (x+h)^2
Step 2 ：\(\boxed{f(x+h) = (x+h)^2}\)
