Unit 11: Quadratic Equations and Functions

11.2: Completing the Square

Completing the Square

Solve ... by completing the square.

  1. Move the constant to the other side of the equation.
    ...
  2. Manipulate the x coefficient:
    • Divide it by 2
      ...
    • Then square that number
      ...
  3. Add that number to both sides:
    ...
  4. Factor the left-hand side:
    ...
  5. Square-root...
    ...
  6. And solve:
    ...