Distribute the 8w^2 into all the terms of the parenthesis:
8w^2 * 5w^3 = 40w^5 (When you have exponents in a equation that looks like this you always add the exponents together, and 8 * 5 = 40)
8w^2 * 5w = 40w^3 (5w still has an exponent of 1 so you add that plus 2, and again 8 * 5 = 40)
8w^2 * 5 = 40w^2 (there is no exponent in the term of 2 because there is no w so you just add the w^2 onto the 40 because 8 * 5 = 40)
So you're simplified expression is x^4 + 3x^3 + 2x^2
Hope this helped! Mark Brainliest please! :))
