Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 5 Polynomials and Polynomial Functions - 5.4 Factor and Solve Polynomial Equations - 5.4 Exercises - Skill Practice - Page 357: 38



Work Step by Step

The equation is the same as: $5b^3+15b^2+12b+36=(b+3)(5b^2+12)=0$ Thus $5b^2+12=0$ (but this is impossible since $b^2$ is non-negative) or $b+3=0\\b=-3$
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