#1**0 **

to expand this polynomial, we should multiply the factors in order from left to right. hopefully you can follow this process -

5w + 5*4 + w^2 + 4w.

to simplify, we combine the like terms, to get:

**w^2 + 9w + 20**

hope this helped! sorry if this wasn't too clear.

here are a few websites that may help you understand this better:

https://www.brainfuse.com/jsp/alc/resource.jsp?s=gre&c=35257&cc=108827#:~:text=A%20polynomial%20is%20expanded%20if%20no%20variable%20appears,3x(4%20-%20x)%20%2B%20(2x%20-%205)%202

also try out Symbolab's expansion calculator. it provides a step-by-step expansion of polynomial expressions as well.

if you have some time, give these a try! Google searches are also useful to help you learn more too!

euph0ria Mar 15, 2021