Question

Tentukan turunan dari :
1. f(x) =
2. y =

Answer 1

Turunan u/v = u' (v) - v'(u)
u' 6x + 1
v' =2x + 1

6x+1(x²+x-1)  -  2x + 1(3x² + x -5)
(6x³ + 6x² - 6x + x²+x-1 ) - (6x³ + 2x² - 10x + 3x² + x -5)
(6x³ + 7x²-5x  -1)- (6x³ + 5x² - 9x -5) = 2x² + 4x + 4
 
2. ((x-1) (x-1)) (x-1)
   (x² -2x + 1) (x-1)
   x³ -x²-2x² + 2 + x -1
 x³-3x² + x + 1

semoga benar