Asked by John

If f(x)= x^2-2, then f(x+h)=?
Answered by Jai
we just substitute the value of x for x + h :
f(x) = x^2 - 2
f(x+h) = (x+h)^2 - 2
if we want to expand it,
f(x+h) = x^2 + 2xh + h^2 - 2

hope this helps~ :)
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