tentukan turunan f(x)= (2x + 5 ) (x2 + 3x )

misal = u = (2x+5) ; v= (x²+3x)
f'(x) = uxv = (u'xv)+(uxv')
u'= 2 ; v'=2x+3
f'(x) = 2(x²+3x)+(2x+5)(2x+3)
f'(x) = 2x²+6x+4x²+6x+10x+15
f'(x) = 6x²+22x+15
sorry ya