Completing the Square
Grade 8•45 minutes
Learning Objective
I can rewrite a quadratic expression in vertex form by completing the square.
Practice Questions
This lesson includes 7 practice questions to reinforce learning.
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1. Explain the general form of a quadratic equation in vertex form and how the vertex can be identified from this form.
2. Rewrite the quadratic equation y = x² + 6x + 5 in vertex form by completing the square.
3. What value do you need to add and subtract to complete the square for the expression x² - 10x? Explain your reasoning.
...and 4 more questions
Educational Video
Completing the square for vertex form | Quadratic equations | Algebra I | Khan Academy
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