Answer:
See below.
Step-by-step explanation:
We want to show that:

Using the distributive property.
To do so, let's take a look at our original expression:

From here, we can factor out a x. In other words, we <em>un-distribute</em>, the reversing the distribute property. This yields:

If we distribute again, we'll get the same thing.
From here, let's add within the parentheses...

And multiply:

This gets the desired result.
And we're done!