Derivatives question!! HELP PLEASE

Question

Q1) Find the derivatives of the following with respect to x

 y=5x^3 - 4x^2

y = 1 + (1/x) + (1/x^2)

y = 6x^(1/3)

y = (x^2 + 8) / (sqrt x)

 

x3−4x

2

 

Answer 1

Recall the formulae

1) The function

Apply derivative on each side with respect of x.

2) The function

Apply derivative on each side with respect of x.

3) The function

Apply derivative on each side with respect of x.

4) The function

Apply quotient rule in derivatives.