Answer
$-1*(2x+1)(x-5)$
Work Step by Step
$-2x^2+9x+5$
$-1*(2x^2-9x-5)$
Factors of -5: 1 and -5, 5 and -1
Factors of 2: 1 and 2, -1 and -2
$(2x+1)(x-5)$
$2x*x+2x*-5+x*1+(1)(-5)$
$2x^2-10x+x-5$
$2x^2-9x-5$
$-1*(2x+1)(x-5)$
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 6.3 - Factoring Trinomials of the Form ax2+bx+c - Exercise Set - Page 436: 71
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