Solving Quadratic Equations by Completing the Square with Non-Unit Leading Coefficient

Solving Quadratic Equations by Completing the Square with Non-Unit Leading Coefficient

Assessment

Interactive Video

Mathematics

1st - 6th Grade

Hard

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This lesson teaches how to solve quadratic equations by completing the square, especially when the leading coefficient is not 1. It explains the concept of perfect square trinomials and how to transform non-perfect squares into perfect squares by identifying and adding the missing component. The lesson provides a detailed example of solving a quadratic equation with a non-unit leading coefficient, demonstrating the process of dividing to simplify the equation, completing the square, and solving for the variable.

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7 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the purpose of completing the square in a quadratic equation?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain what a perfect square trinomial looks like.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What does it mean if a quadratic equation is not a perfect square?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

How do you determine the 'yellow piece' needed to complete the square?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

What steps do you take to complete the square for the equation 2x² + 3x - 2 = 0?

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe how to factor a perfect square trinomial once it has been created.

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the final solutions for x in the equation after completing the square?

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