In this lesson, you learned how to:

• Use the quadratic formula to solve quadratic equations.
• Explain when some methods for solving quadratic equations can be more convenient than others.

Here are the activities that helped you reach those goals:

• 9.6.1: Evaluating Expressions
  • In this activity, you evaluated expressions using order of operations, square roots, the plus or minus sign, and more.
• 9.6.2: Choosing the Best Method to Solve an Equation
  • In this activity, you chose between writing a quadratic equation in factored form or completing the square to solve an equation.
  • 9.6.2: Self Check
  • 9.6.2: Additional Resources
• 9.6.3: The Quadratic Formula
  • In this activity, you used the quadratic formula to show that the solutions of the given quadratic equations were correct.
  • 9.6.3: Self Check
  • 9.6.3: Additional Resources
• 9.6.4: Solving Equations Using the Quadratic Formula
  • In this activity, you used the quadratic formula to solve the given equation.

After these activities, you completed the following practice:

• 9.6.5: Practice