#### Answer

$3+4i$

#### Work Step by Step

Step 1: $(2+i)^{2}$
Step 2: $(2+i)(2+ii)$
Step 3: $2(2+i)+i(2+i)$
Step 4: $4+2i+2i+i^{2}$
Step 5: $4+4i+(-1)$
Step 6: $4+4i-1$
Step 7: $3+4i$

Published by
Pearson

ISBN 10:
0321671775

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

$3+4i$

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