Question

Turunan dari f (x): (5x+6) (2-7x) adalah

Answer 1

F(x) = (5x+6)(2-7x)
u = 5x+6 => u' = 5
v = 2-7x => v' = -7
f'(x) = u'.v + u.v'
= 5.(2-7x) + (5x+6).(-7)
= 10 - 35x - 35x - 42
= -75x - 32