is there no step 3 to this solution? and why does it end like that like what exactly would be the answer?

Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter6: Quadratic Equations And Inequalities
Section6.5: More Quadratic Equations And Applications
Problem 71PS
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is there no step 3 to this solution? and why does it end like that like what exactly would be the answer?

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