#### Answer

-5$y^{3}$+2$y^{2}$-6

#### Work Step by Step

Given expression: ($y^{3}$-4$y^{2}$-2)-(6$y^{3}$+4-6$y^{2}$)
Take out the parenthesis: $y^{3}$-4$y^{2}$-2-6$y^{3}$-4+6$y^{2}$
Combine like terms: -5$y^{3}$+2$y^{2}$-6

Published by
Prentice Hall

ISBN 10:
0133281140

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

-5$y^{3}$+2$y^{2}$-6

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