In this lesson, you learned how to:

• Explain what it means to "complete the square" and describe how to do it.
• Solve quadratic equations by completing the square and finding square roots.

Here are the activities that helped you reach those goals:

• 9.2.1: Different Forms of Perfect Squares
  • In this activity, you identified which expressions were perfect squares.
• 9.2.2: Standard and Factored Forms of Perfect Squares
  • In this activity, you rewrote perfect squares given in standard form into factored form and vice versa.
  • 9.2.2: Self Check
  • 9.2.2: Additional Resources
• 9.2.3: Completing the Square
  • In this activity, you solved quadratic equations using completing the square strategy.
  • 9.2.3: Self Check
  • 9.2.3: Additional Resources
• 9.2.4: Making a Perfect Square
  • In this activity, you determined what needed to be added to a polynomial to make a perfect square trinomial.

After these activities, you completed the following practice:

• 9.2.5: Practice