1. Jeffrey Bivin Lake Zurich High School Jeff.bivin@lz95.org
Algebra Tiles
Jeffrey Bivin
Lake Zurich High School
Last Updated: October 11, 2005

2. X2 + 6x + 9 x 1 1 1 1 1 1 x x + 3 Now, complete the square 1 + 9 1 1
Jeff Bivin -- LZHS

3. X2 + 5x + 25/4 x 1 1 .5 1 1 1 x x + 5/2 Now, complete the square 1
Jeff Bivin -- LZHS

4. X2 - 6x + 9 x 1 1 1 1 1 1 1 1 1 x - 3 x 1 + 9 1 1 turn 1 square over
turn 2 squares over
turn 2 squares over
turn 3 squares over
Jeff Bivin -- LZHS

5. X2 + 4x + 4 4 x 1 1 1 1 x x + 2 Now, complete the square 1 1 x + 2
Jeff Bivin -- LZHS

6. x2 2x 3x 6 x2 + 5x + 6 x + 2 x 1 1 x + 3 x 1 1 1 (x + 3)(x + 2)
Jeff Bivin -- LZHS

7. x2 5x 2x 10 x2 + 7x + 10 x + 5 x 1 1 1 1 1 x + 2 x 1 1 (x + 2)(x + 5)
Jeff Bivin -- LZHS

8. x2 3x -2x -6 x2 + x - 6 x + 3 x 1 1 1 x | 2 x 1 1 (x - 2)(x + 3)
Jeff Bivin -- LZHS

9. Jeff Bivin -- LZHS