Answer
(x+3y)(x+5y)
Work Step by Step
$x^{2}$ + 8xy +15$y^{2}$ =
$x^{2}$ +5xy+3xy +15$y^{2}$ = group terms
x(x+5y) +3y(x+5y) factor out GCF from each grouping
(x+3y)(x+5y)
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 6 - Section 6.2 - Factoring Trinomials of the Form x2+bx+c - Exercise Set - Page 428: 13
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