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AmTran_Bus
 one year ago
d/dx of (x^3+2x)e^x
AmTran_Bus
 one year ago
d/dx of (x^3+2x)e^x

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AmTran_Bus
 one year ago
Best ResponseYou've already chosen the best response.0I used the chain rule, but chegg says the product rule. Why? I got e^x(x^3+2x)*3x+2

AmTran_Bus
 one year ago
Best ResponseYou've already chosen the best response.0But why? guess I dont understand the concept.

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1\[\Large\rm \frac{d}{dx} (x^3+2x)e^x=\color{orangered}{(x^3+2x)'}e^x+(x^3+2x)\color{orangered}{(e^x)'}\]

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1You have two xthingy's being multiplied together, that's called a product

AmTran_Bus
 one year ago
Best ResponseYou've already chosen the best response.0Would I have used the chain rule if the (x^3+2x) had of been squared or cubed?

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1Chain rule is when you have a function inside of a function. Product rule you apply when you have a function `next to` a function.

AmTran_Bus
 one year ago
Best ResponseYou've already chosen the best response.0Ok. I think I got it now. Thanks.
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