# How do you differentiate #f(x)= (7 x^2 + 2x - 6 )/ (x- 1 )# using the quotient rule?

##### 1 Answer

Jan 11, 2016

#### Explanation:

for a rational function let f(x) =

where u and v are both functions of x.Then :

differentiating using this and the chain rule gives :

'tidying up ' the numerator :