### Home > AC > Chapter 12 > Lesson 12.1.3 > Problem 12-28

12-28.

Solve the quadratic below *twice*: once by factoring and using the Zero Product Property and once by completing the square. Verify that the solutions match.

Completing the square:

Add .

Factoring and Zero Product Property:

Factor the quadratic, then find its roots from the factors.

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