Is 2x the Correct Derivative of y = x^2?

[Miike012]

Homework Statement

Say y = x^2

For the right side if I wanted to differentiate it would I write
d(x^2)/dx = 2x

Is that correct?

Homework Equations

The Attempt at a Solution

 

[rock.freak667]

You can just write 2x as long as you write dy/dx on the left side.