#### Answer

The answer is $(7y-4)(3y+12)$.

#### Work Step by Step

1. $3(7y^{2}+24y-16)$
2. $3(7y^{2}+28y-4y-16)$
3. $3[7y(y+4)-4(y+4)]$
4. $3(7y-4)(y+4)$
5. $(7y-4)(3y+12)$

Published by
Prentice Hall

ISBN 10:
0133281140

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

The answer is $(7y-4)(3y+12)$.

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