# How do you use the chain Rule to find the derivative of #sqrt(2x^3 - 3x- 4)#?

##### 1 Answer

#### Explanation:

You can use the chain rule to find the derivative of this function by using

The chain rule tells you that you can differentiate a function

Two additional rules of derivation, the power rule and the sum rule will come into play at certain points in the derivation of

So, if you use

So, the derivative of

The *power rule* tells you that you can differentiate a variable

This means that you have

The *sum rule* tells you that the derivative of a function that can be written as a sum of two (or more) functions is equal to the sum of the derivatives of those functions.

For

you have

This means that you can write

Your original derivative now becomes

Finally,