College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter R - Section R.4 - Polynomials - R.4 Assess Your Understanding - Page 48: 53

Answer

$x^2-2x-8$

Work Step by Step

The goal is to multiply each term in the first parentheses set by each term in the second parentheses set. But use FOIL, meaning multiply the first term of the first parentheses set by the first term of the second parentheses set, then multiply the outer terms, then multiply the inner terms, then multiply the 2 last terms of each set. (x-4)(x+2) $x^2+2x-4x-8$ Combine like terms $x^2-2x-8$ To put in polynomial standard form,make sure to rearrange the numbers by degree from high to low going left to right
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.