Find the gradient of the curve y = x(3x + 2)3 at x = 2. A. 896 B. 1664 C. 1152 D. 384 E. 128If f?(x)

Find the gradient of the curve y = x(3x + 2)3 at x = 2. A. 896 B. 1664 C. 1152 D. 384 E. 128If f″(x) = 0 and f′(x) ≠ 0 for all x, what type of function is f(x)? A. Zero B. Constant C. Linear D. Quadratic E. Cubic