In this lesson, you learned how to:

• Explain why dividing by a variable to solve a quadratic equation is not a good strategy.
• Explain why quadratic equations can have no solutions and explain why there are none.

Here are the activities that helped you reach those goals:

• 8.5.1: Reviewing Zero Product Property
  • In this activity, you reviewed how the zero product property allows you to find solutions to quadratic equations in which an expression of factors is set equal to 0.
• 8.5.2: Interpreting Graphs to Solve Quadratic Equations
  • In this activity, you learned how to use technology to graph quadratic equations and interpret those graphs to find solutions.
  • 8.5.2: Self Check
  • 8.5.2: Additional Resources
• 8.5.3: Choosing an Effective Strategy to Solve Quadratic Equations
  • In this activity, you practiced solving quadratic equations without any outside context about the best strategy to use.
  • 8.5.3: Self Check
  • 8.5.3: Additional Resources
• 8.5.4: Analyzing Errors When Solving Quadratic Equations
  • In this activity, you learned to watch out for common errors made when solving quadratic equations. This includes not taking the square root of a negative number and accurately determining how many solutions an equation might have.

After these activities, you completed the following practice:

• 8.5.5: Practice