Jawabanmu

2014-05-06T17:33:49+07:00
Y = 4(x³ + 2x)^5
y' = 20(x² + 2x)^4(2x - 2)
   = 80(2x - 2)(x² + 2x)^4
   = (160x - 160)(x² + 2x)^4

y = x²-4
        √x
y' = 2x√x - (x²-4)1/2 x^-1/2)
                 x