## Introductory Algebra for College Students (7th Edition)

Published by Pearson

# Chapter 6 - Section 6.6 - Solving Quadratic Equations by Factoring - Exercise Set: 27

x=-2

#### Work Step by Step

Factor the trinomial. x$^2$+4x+4=0 (x+2)(x+2)=0 Set each variable factor as equal to zero and then isolate the variable to find the solutions. x+2=0 or x+2=0 x=-2 or x=-2 Enter the original equation into your graphing utility to observe that the graph crosses the x-axis at -2.

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