Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 10 - Section 10.3 - Finding Binomial Factors - Exercise: 62

Answer

$(y+6)(y-7)$

Work Step by Step

$y^2-y-42$ has no common monomial factors. =$(\ \ \ \ \ \ \ \ \ )(\ \ \ \ \ \ \ \ \ )$ =$(y\ \ \ \ \ \ \ )(y\ \ \ \ \ \ \ )$ =$(y+\ \ )(y-\ \ )$ The factors of -42 must have dislike signs. =$(y+6)(y-7)$ 6 and -7 have a sum of -1 and a product of -42.
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