#### Answer

$26$

#### Work Step by Step

$(5 - i)(5+i) = 25 +5i - 5i - i^2 = 25 - (-1) = 26$

Published by
Pearson

ISBN 10:
013421742X

ISBN 13:
978-0-13421-742-0

$26$

$(5 - i)(5+i) = 25 +5i - 5i - i^2 = 25 - (-1) = 26$

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