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1. Lesson Video 5.5 “What are we trying to accomplish?” Algebra 2 2013-14 Example by Mrs. G Give It a Try

2. Lesson 5.5 • Complete the square to make an expression a perfect square trinomial • Solve quadratic equations by completing the square Objective Video Example by Mrs. G Give It a Try

3. Video www.youtube.com algebrafun Objective Video Example by Mrs. G Give It a Try

4. Example by Mrs. G Algebra Tiles can represent algebraic expressions. x2 -x2 x x x x x 1 -x -1 1 1 1 1 Colored sides represent positive Red sides represent negative Click to continue. Objective Video Example by Mrs. G Give It a Try

5. Example by Mrs. G Use Algebra Tiles to represent x2 x x x x x x Click to continue. Objective Video Example by Mrs. G Give It a Try

6. Example by Mrs. G Arrange the tiles to form part of a square. x2 x x x x x x x x x x x x Click to continue. Objective Video Example by Mrs. G Give It a Try

7. Example by Mrs. G Add unit (1) squares to “complete the square” x2 x x x x 1 1 1 x 1 1 1 x 1 1 1 Click to continue. Objective Video Example by Mrs. G Give It a Try

8. Example by Mrs. G Add the number of unit squares to the original expression. x2 x x x x 1 1 1 x 1 1 1 x 1 1 1 Click to continue. Objective Video Example by Mrs. G Give It a Try

9. Example by Mrs. G Look at the dimensions of each side of the square. x 1 1 1 x2 x x x x Therefore, we can conclude x 1 1 1 1 1 x 1 1 1 x 1 1 1 1 Click to continue. Objective Video Example by Mrs. G Give It a Try

10. Give It a Try Complete the table. Use the idea of algebra tiles to help you if necessary. Bring your work and answer to our next class! Objective Video Example by Mrs. G Give It a Try