Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 5 - Polynomials and Factoring - 5.3 Factoring Trinomials of the Type ax2+bx+c - 5.3 Exercise Set - Page 327: 80


2 points

Work Step by Step

I would take off two points. After all, she factors the initial expression correctly. She makes a mistake, however, at the end, for she factors a 2 out of both factors, so the whole expression should be multiplied by $2\times 2=4$. This is a minor mistake, but it certainly demonstrates a lack of understanding.
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