# How do you differentiate #g(x) =x (4x^6 + 5) # using the product rule?

##### 1 Answer

Apr 24, 2016

#### Answer:

#### Explanation:

The product rule says that if

then

Substituting in from the question,

Now we can find that

and, on expanding the brackets,

You can check this answer by distributing the function and just using the power rule: