### Home > AC > Chapter 8 > Lesson 8.3.2 > Problem 8-107

8-107.

Use the Quadratic Formula to solve part (b) of problem 8-106 above. Did your solution match the solution you got by factoring and using the Zero Product Property (in part (b) of problem 8-106)?

**Example 2:** Solve using the Quadratic Formula.

**Solution: **This method works for *any* quadratic. First, identify , and

*.*

*equals the number of*

*-terms,*

*equals the number of*

*terms, and* -

*equals the constant. For*

*. Substitute the values of*

*, and*

*into the Quadratic Formula and evaluate the expression twice: once with addition and once with subtraction. Examine this method below:*