find f(x+h)-f(x)/h for f(x)=x^3-x

find f(x+h)-f(x)/h for f(x)=x^3-x  college algebra/precalc
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1 Answer

x^3 -x

thats the tangent

d/dx=3*x^2-1

then plug in a x, such as x=1...tangent=3-1=2
by

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