I just started calculus and we are doing limits. I was doing fine until I ran across this problem:(adsbygoogle = window.adsbygoogle || []).push({});

lim ( (x+∆x)^2 - x^2 ) / x

∆x approaches 0

I substituted delta x for a and ended up with 2x + a

I dont think this is right for some reason, but I think I did everything right, can someone please verify my answer so that I know Im on the right track? thanks!

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# Limits help!

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