Answer:
f'(x) = 20x^4 /e^x - 4x^5/e^{2x}
Step-by-step explanation:
The derivative of a quotient is the denominator times the derivative of the numerator minus
the numerator times the derivative of the denominator all over the square of
the denominator. In this case that would be e^x * 5*4*3*2 + 4*5*6*7/(e^{2x})