Answer
x=3 or x=-5
Work Step by Step
$x^2+2x-15=0\longrightarrow$ the factors of -15 that sum to 2 are -3,5
$(x-3)(x+5)=0$
Using the 0 product property,
$x-3=0\ or\ x+5=0$
$x-3+3=0+3\ or\ x+5-5=0-5$
$x=3\ or\ x=-5$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 10 - Radical Expressions and Equations - 10-3 Operations with Radial Expressions - Mixed Review - Page 618: 78
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter 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.
