In this lesson, you will continue to learn that some solutions to quadratic equations are irrational and can also include expressions that involve a rational number and an irrational number.
When you finish this lesson, you will be able to:
- Use the radical and "plus-minus" symbols to represent solutions to quadratic equations.
- Explain why the plus-minus symbol is used when solving quadratic equations by finding square roots.
Here are the activities that will help you reach those goals:
- 9.5.0: Lesson Overview
- 9.5.1: Roots of Squares
- 9.5.2: Solutions Written as Square Roots
- 9.5.2: Self Check
- 9.5.2: Additional Resources
- 9.5.3: Finding Irrational Solutions by Completing the Square
- 9.5.3: Self Check
- 9.5.3: Additional Resources
- 9.5.4: Finding Exact Solutions
After that, you'll practice and review.
- 9.5.5: Practice
- 9.5.6: Lesson Summary