Solving by completing the square and factoring out a two

Solving by completing the square and factoring out a two

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains the process of completing the square for solving quadratic equations. It begins with the importance of having a quadratic equation and creating a perfect square trinomial. The instructor demonstrates factoring out constants and adjusting for added values to maintain equation balance. The tutorial then covers solving the equation using the square root method, emphasizing the usefulness of completing the square when equations are not easily factorable.

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5 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the first step in completing the square for the equation 2X^2 + 8X - 3 = 0?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How do you determine the value to add to both sides of the equation to create a perfect square trinomial?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain why we need to create a perfect square trinomial when completing the square.

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the final answer for X when solving the equation using the square root method?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

Why is completing the square considered helpful when a quadratic equation cannot be factored?

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