Question #bf526 Calculus Basic Differentiation Rules Power Rule 1 Answer Homayra ยท Stefan V. Aug 18, 2017 dy/dx = 2 * 2x^(2-1) - 4x^(1-1)+ 0 * 9^(0-1) = 4x - 4 (d^2y)/dx^2 = 1 * 4x^(1-1) - 0 * 4^(0-1) = 4 Explanation: At first, differentiate the equation of y and then differentiate the first differentiated equation to find the value of the second derivative. 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 1671 views around the world You can reuse this answer Creative Commons License