Answer Happy

Question 7 Use the appropriate differentiation techniques to determine the f'(x) of the following functions (simplify your answer as far as possible): (-x³-2x−²+5)(x−4+5x² - x - 9). 7.1 f(x)= 7.2 f(x) = (x+1)-2. 7.3 f(x) = (-2x²-x)(-3x³-4x²). -X+2 (4) (4)