How do you find the derivative of y=8-(7x^3)? Calculus Basic Differentiation Rules Power Rule 1 Answer Alan N. Sep 23, 2016 y'=-21x^2 Explanation: y=8-7x^3 y'= 0-7*3x^(3-1) = -21x^2 (Power rule) Answer link Related questions How do you find the derivative of a polynomial? How do you find the derivative of y =1/sqrt(x)? How do you find the derivative of y =4/sqrt(x)? How do you find the derivative of y =sqrt(2x)? How do you find the derivative of y =sqrt(3x)? How do you find the derivative of y =sqrt(x)? How do you find the derivative of y =sqrt(x) using the definition of derivative? How do you find the derivative of y =sqrt(3x+1)? How do you find the derivative of y =sqrt(9-x)? How do you find the derivative of y =sqrt(x-1)? See all questions in Power Rule Impact of this question 1809 views around the world You can reuse this answer Creative Commons License