# Problem of the Week

## Updated at Jan 5, 2015 12:01 PM

For this week we've brought you this calculus problem.

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

Here are the steps:

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

 1 Use Power Rule: $$\frac{d}{dx} {x}^{n}=n{x}^{n-1}$$.$7{x}^{6}-5{x}^{4}$Done7*x^6-5*x^4