## Calculus with Applications (10th Edition)

Published by Pearson

# Chapter R - Algebra Reference - R.2 Factoring - R.2 Exercises: 8

#### Answer

$$(b-7)(b-1)$$

#### Work Step by Step

Consider all the pairs of factors of $7$. Find the pair that sum to $-8$: $$(-7)\times (-1)=7$$ $$-7-1=-8$$ $$b^2-8b+7=(b-7)(b-1)$$

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