Please solve all no explanation necessary thanks

9 If f(x) = 1013 + x, then f' (8) = 10 4 4 / 3 10 X 1/3 40 / 3 X f' ( x ) = 40 / 3 8 + 8 10. If f(x) = 2x2 + 4, which of the following will calculate the derivative of f(x)? A. [2 (xth) 2+4]-(2x2+4) h-x (2x2+4+h)-2x2+4 B. lim h-0 h c. lim [2(x +h) 2+4]-(2x2+4) h -0 h D. (2x2+4+h)-(2x2+4) h E. None of the above. 11. Let f (x) = x+ 4 (a) Compute f'(x). f ( X) = X + 4 x 2 (b) Find all values of x satisfying f'(x) = 0