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babunello [35]
3 years ago
7

(X+h)^3 + (x+h)-(x^3+x)

Mathematics
1 answer:
ICE Princess25 [194]3 years ago
8 0
\dfrac{(x+h)^3 + (x+h)-(x^3+x)}{h}=\\
\dfrac{x^3+3x^2h+3xh^2+h^3+x+h-x^3-x}{h}=\\
\dfrac{3x^2h+3xh^2+h^3+h}{h}=\\3x^2+3xh+h^2+1
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