Deriving the Quadratic Formula by Completing the Square

Deriving the Quadratic Formula by Completing the Square

Assessment

Interactive Video

Mathematics

1st - 6th Grade

Hard

Created by

Quizizz Content

FREE Resource

This video tutorial teaches how to derive the quadratic formula by completing the square. It begins with an introduction to the concept of completing the square and then moves on to preparing the quadratic equation for this process. The tutorial explains the detailed steps of completing the square using variables instead of numbers, ensuring the method works for any quadratic equation. Finally, it demonstrates how to derive the quadratic formula from the completed square, providing a comprehensive understanding of the process.

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3 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of the term b/2 in the process of completing the square?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What does the term sqrt(b^2 - 4ac) represent in the quadratic formula?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the final form of the quadratic formula derived from completing the square.

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