# Chapter 10 - Section 10.3 - Finding Binomial Factors - Exercise: 42

$(y+10)(y+7)$

#### Work Step by Step

$y^2+17y+70$ has no common monomial factor $=(\ \ \ \ \ \ \ \ )(\ \ \ \ \ \ \ \ )$ $=(y\ \ \ \ \ \ )(y\ \ \ \ \ \ )$ $=(y+\ )(y+\ )$ All signs in the trinomial are positive. $=(y+10)(y+7)$ 10 and 7 have a sum of 17 and a product of 70.

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