Factoring

[ripe yew]

How do I factor this completely?

[novel arch]

1. Wait patiently for a helper to come along.
2. Once someone helps you, say thank you and close the thread with:

+close

3. Feel free to nominate the person for helper of the week in #helper-nominations
4. Do not ping the mods, unless someone is breaking the rules.
5. If you're happy with the help you got here, and the server overall, you can contribute financially as well:

[prime wadi]

Yo

[ripe yew]

Yo

[prime wadi]

This is a difference of squares

$$a^2-b^2 = (a-b)(a+b)$$

[placid trail]

Giovyx

[ripe yew]

so what would it be

[forest glen]

What did you get?

[fiery crag]

$$(a+2b-a+2b)(a+2b+a-2b)$$

[placid trail]

L_egend

[fiery crag]

and after that

$$(4b)(2a)$$

[placid trail]

L_egend

[fiery crag]

8ab would be the answer