Find the derivative of y=x^2 / e^2x using the Quotient Rule, and simplify.

Question

I really need help! please! :)

Answer 1

http://en.wikipedia.org/wiki/Quotient_rule

y'= (2x*e^2x-2e^2x*x^2)/e^4x

= (2x)(1-x)/e^2x

check my work, I did it in my head.

Answer 2

thank u so much! I checked it cause i used ur wikipedia link and understood it better. my teacher uses her own formula or something instead of d(x) or whatever. thank u soo much!! :)