Answer
$w^2-ws-rw+rs.$
Work Step by Step
We multiply each term of the first polynomial by each term of the second polynomial. Then we add the products, as follows
$$
(w - r)(w - s)=w (w - s) - r(w - s)\\
=w^2-ws-rw+rs.
.$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 5 - Section 5.5 - Multiplication of Polynomials - Exercise - Page 226: 56
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