Answer
162,409
Work Step by Step
Rewrite the base as the sum of two easily squared numbers.
$403^2=(400+3)^2=160,000+2,400+9=162409$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 8 - Polynomials and Factoring - 8-4 Multiplying Special Cases - Practice and Problem-Solving Exercises - Page 496: 23
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