AlgebraLab

Algebra II Recipe: Completing the Square

By C Adams

Directions and/or Common Information:

Write each quadratic equation in vertex form by completing the square.

y = x2 + 6x - 7

y = x2 - 9x + 5

y = 2x2 - 8x + 20

Directions and/or Common Information:

Solve each quadratic equation by completing the square.

x2 - 20x + 50 = 0

x2 + 2x - 15 = 0

2x2 - 16x + 48 = 0

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