How do you find f(x+h) for the function $f(x)= x^3 + x$ ?

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Answer 1 · 2016-06-21T16:06:06

Use Pascal's Triangle for quick results

$f(x+h) = (x+h)^3 + (x+h)$

Pascal's Triangle is the easiest way to find the bonimial coefficients

$= (x^3 +3 x^2 h + 3 x h^2 + h^3) + (x+h)$

How do you find f(x+h) for the function f(x)= x^3 + xf(x)= x^3 + x?