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#2 Re: Help Me ! » Please help explain math expansion » 2018-06-21 07:27:45

http://www.mathisfunforum.com/latex/b/1/4e18c1f224b02b22693d61ffad4eff1.gif

Could you elaborate about more. Where does 2x delta x come from ?


Thanks

#3 Help Me ! » Please help explain math expansion » 2018-06-20 15:36:35

Mathando
Replies: 4

Could someone help explain the expansion below:
Square(x+Δx) -> square(x)+ 2x Δx + square(Δx)

In my understanding, below should be the correct expansion:
Square(x+Δx) -> square(x) + square(Δx)

My question is from reading “introduction to derivative” article on MathIsFun


Thanks,

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