#### Answer

$4n^{2}+28n+49$

#### Work Step by Step

$(2n+7)^{2}=$
...square the binomial.
$=(2n)^{2}+2(2n)(7)+7^{2}$
...simplify.
=$4n^{2}+28n+49$

Published by
Prentice Hall

ISBN 10:
0133281140

ISBN 13:
978-0-13328-114-9

$4n^{2}+28n+49$

$(2n+7)^{2}=$
...square the binomial.
$=(2n)^{2}+2(2n)(7)+7^{2}$
...simplify.
=$4n^{2}+28n+49$

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