Derivative of 14x^2: Quick Question and Solution

[Cacophony]

Homework Statement

What is the derivative of 14x^2?

Homework Equations

The Attempt at a Solution

Do i bring the 2 in front to get 28x? Or do I use the chain rule?

 

[jey1234]

Do i bring the 2 in front to get 28x? Or do I use the chain rule?

28x is the correct answer. Technically you always use the chain rule including in this case. Think about it: derivative of (14x^2) is 28x and derivative of x is 1. So by chain rule, the answer is (28x)(1) = 28x.

 

[Cacophony]

cool beans