Tentukan hasil Turunan Pertamadari fungsi berikut :

f(x)=  axⁿ –> f'(x)+  a. n xⁿ⁻¹

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a. f(x) = 6x² + 3x + 1

f'(x)=  12 x + 3

b. f(x) = (2x-4) (x+5)

f(x) =  2x² + 6x -20

f'(x) =  4x  + 6

c. f(x) =(x²-1) (x³+3)

f(x)=  x⁵ – x³ + 3x²  - 3

f(x) =  5 x⁴ – 3x² + 6x

d. f(x) = (x-1) / (x-3)

f'(x)=   {1(-3)-1(-1) } / ( x- 3)²

f'(x)=   ( -3 + 1) / ( x- 3)²

f'(x) =   -2/ (x – 3)² ​