# Problem of the Week

## Updated at May 30, 2016 9:37 AM

How would you differentiate $${x}^{7}-5x$$?

Below is the solution.

$\frac{d}{dx} {x}^{7}-5x$

 1 Use Power Rule: $$\frac{d}{dx} {x}^{n}=n{x}^{n-1}$$.$7{x}^{6}-5$Done7*x^6-5