Answer
3591
Work Step by Step
Rewrite the product 63$\times$57 into (60+3)(60-3).
Apply the formula (a+b)(a-b)=$a^{2}$-$b^{2}$, we have:
(60+3)(60-3) = $60^{2}$-$3^{2}$
=3600-9
=3591
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 8 - Polynomials and Factoring - 8-4 Multiplying Soecial Cases - Practice and Problem-Solving Exercises - Page 508: 33
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