ddx (x+x)=2x+14xx+x 
 
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ddx (x+x)=2x+14xx+x 
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  • ddx (x+x)

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    Apply the chain rule:    12x+x ddx (x+x)
    =12x+x ddx (x+x)

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    ddx (x+x)=1+12x 
    =12x+x (1+12x )

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    Simplify 12x+x (1+12x ):    2x+14xx+x 
    =2x+14xx+x 

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