Algebra 2 (1st Edition)

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

Chapter 5 Polynomials and Polynomial Functions - 5.9 Write Polynomial Functions and Models - 5.9 Exercises - Skill Practice - Page 397: 6


$f(x)=x (x+3)(x-4)$

Work Step by Step

Here, we have $f(x)=a (x+3)(x)(x-4)$ When $x=-1$, then we have $10=a (-1+3)(-1)(-1-4)$ or, $10a=10$ This gives: $a=1$ Thus, we have $f(x)=x (x+3)(x-4)$
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