Find the derivative of the function y = 2x2 2 (2x - 1) at the point x = -1?

Find the derivative of the function y = 2x2 ${}^2$(2x - 1) at the point x = -1?

Answer Details

y = 2x2 ${}^2$(2x - 1)
y = 4x3 ${}^3$ - 2x2 ${}^2$
dy/dx = 12x2 ${}^2$ - 4x
at x = -1
dy/dx = 12(-1)2 ${}^2$ - 4(-1)
= 12 + 4
= 16