Calculus HELP

Using the function y=x/4^x, show that the most simplified derivative is y′=(1−2xln(2))/4^x

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  1. [bottom * derivative of top - top * derivative of bottom]/(bottom)^2

    [ 4^x - x (4^x)ln(4)] / 4^(2x)
    =(4^x/4^2x) [ 1 - x ln2^2]
    = [ 1 - 2x ln2] / 4^x

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