## Algebra 2 (1st Edition)

Published by McDougal Littell

# Chapter 4 Quadratic Functions and Factoring - 4.3 Solve x(squared) + bx + c = 0 - 4.3 Exercises - Skill Practice - Page 255: 9

#### Answer

$(b-5)(b+8)$

#### Work Step by Step

We try to find factors of c in $x^2+bx+c$ that add to negative b, In this case... $b^2+8b-5b-40$ $b(b+8)-5(b+8)$ $(b-5)(b+8)$

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