#### Answer

no solution

#### Work Step by Step

$3-\sqrt {4a+1} = 12$
$3-\sqrt {4a+1}-12+\sqrt {4a+1} = 12-12+\sqrt {4a+1}$
$-9 = \sqrt {4a+1}$ (no solution--square root of a number isn't negative)

Published by
Prentice Hall

ISBN 10:
0133500403

ISBN 13:
978-0-13350-040-0

no solution

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