Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 8 - Polynomials and Factoring - 8-3 Multiplying Binomials - Practice and Problem-Solving Exercises - Page 490: 46



Work Step by Step

Substitute the dimensions of the formula: V=n(n+7)(n+8) Use FOIL on (n+7)(n+8): V=n[(n)(n)+(n)(8)+(7)(n)+(7)(8)] V=n[$n^{2}$+8n+7n+56] V=n[$n^{2}$+15n+56] Distribute n: V=$n^{3}$+$15n^{2}$+56n
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