Teaching Algebra with Manipulatives

NAME ______________________________________________ DATE ____________ PERIOD ____
Algebra Activity
(Use with Algebra 2, Lesson 6-4)
Completing the Square
Draw a diagram. Then fill in the blank to complete the square.
1. x 2 8x __________ 2. x 2 2x __________
3. x 2 4x __________ 4. x 2 12x __________
Solve each equation by completing the square.
Example: x 2 4x 12
x 2 4x 4 12 4
(x 2) 2 16
x 2 4
x {6, 2}
5. x 2 2x 48 6. x 2 6x 16
7. x 2 8x 15 0 8. x 2 7x 12 0
9. x 2 12x 7 20 10. x 2 10x 42 3
© Glencoe/McGraw-Hill 246 Teaching Algebra with Manipulatives