Algebra: A Combined Approach (4th Edition)

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 435: 23

Answer

$(x-4)(x-5)$

Work Step by Step

$-9x+20+x^2$ $x^2-9x+20$ Factors of 20: 1 and 20, 2 and 10, 4 and 5, -1 and -20, -2 and -10, -4 and -5 $x^2-9x+20$ $(x-4)(x-5)$ $x*x+x*-5+x*-4+(-4)(-5)$ $x^2-5x-4x+20$ $x^2-9x+20$
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