multiply (w-3)(w+5)

To multiply (w-3)(w+5), you can use the factoring method.

First, multiply the terms in the parentheses:
(w-3)(w+5) = w*w + w*5 - 3*w - 3*5

Next, simplify:
w*w + w*5 - 3*w - 3*5 = w^2 + 5w - 3w - 15

Combine like terms:
w^2 + 5w - 3w - 15 = w^2 + 2w - 15

So, the expression (w-3)(w+5) simplifies to w^2 + 2w - 15.