#### Answer

$52$

#### Work Step by Step

Step 1: $(6-4i)(6+4i)$
Step 2: $6(6+4i)-4i(6+4i)$
Step 3: $36+24i-24i-16i^{2}$
Step 4: $36-16(-1)$
Step 5: $36+16$
Step 6: $52$

Published by
Pearson

ISBN 10:
0321671775

ISBN 13:
978-0-32167-177-6

$52$

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