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Intermediate Algebra – Student Workbook – Second Edition 2013

Intermediate Algebra – Student Workbook – Second Edition 2013

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Lesson 5b - Solving Quadratic Equations<br />

Practice Problems<br />

3. Use the Trial and Error Factoring Method to solve each of the quadratic equations below.<br />

Verify your answer by graphing. Be sure to write your final solutions using proper notation<br />

and to label the x-intercepts on your graph.<br />

a) x 2 + 8x + 12 = 0<br />

b) x 2 + 42 = x<br />

c) x 2 <strong>–</strong> 4x = 5<br />

Scottsdale Community College Page 229 <strong>Intermediate</strong> <strong>Algebra</strong>

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