Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Prerequisites - P.3 - Polynomials and Special Products - Exercises - Page 32: 79

Answer

a. $V=4x^3-88x^2+468x$ b. $x=1, V=384$ $x=2, V=616$ $x=3, V=720$

Work Step by Step

a. $V=l\times w\times h,$ $=x(26-2x)(18-2x),$ $=4x^3-88x^2+468x$ b. $x=1, =4(1)-88(1)+468(1)=384$ $x=2, =4(2)^3-88(2)^2+468(2)=616$ $x=3, =4(3^3)-88(3^2)+468(3)=720$
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