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Math Help - Finding roots of an exponential function

  1. #1
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    Finding roots of an exponential function

    Hello,

    In this problem i must take the drivite of  f(x) = x^2*e^x ,

    which i gather is 2xe^x+x^2e^x

    Next I must set f(X) to zero. However, I do knpow how to solve for roots on this function. Any help?
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  2. #2
    Rhymes with Orange Chris L T521's Avatar
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    Quote Originally Posted by skyslimit View Post
    Hello,

    In this problem i must take the drivite of  f(x) = x^2*e^x ,

    which i gather is 2xe^x+x^2e^x

    Next I must set f(X) to zero. However, I do knpow how to solve for roots on this function. Any help?
    In solving 2xe^x+x^2e^x=0, take note that e^x\neq0~\forall x\in\mathbb{R}

    So divide both sides by e^x, and we're left with 2x+x^2=0

    I'm sure you can take it from here.

    --Chris
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