Calculus with Applications (10th Edition)

Published by Pearson
ISBN 10: 0321749006
ISBN 13: 978-0-32174-900-0

Prerequisite Skills Diagnostic Test - Page xxii: 11

Answer

$-y^{2}+4y-6$

Work Step by Step

Write out equation: $(5y^{2}-6y-4)-2(3y^{2}-5y+1)$ Distribute the $2$ over $(3y^{2}-5y+1)$: $(5y^{2}-6y-4)-(6y^{2}-10y+2)$ Distribute the $-1$ over $6y^{2}-10y+2)$ (you can drop both sets of parentheses after this step): $5y^{2}-6y-4-6y^{2}+10y-2$ Combine like terms: $-y^{2}+4y-6$
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.