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): 7.1 f(x)= 7.2 f(x)=(-¹)-1. 7.3 f(x) = (-2x²-x)(-3x³-4x²) (-x32x2+5)(x4+5x²-x-9). (4)