Completing the Square 1
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Lesson Summary:
In Completing the Square 1, we learn how to add a constant or a variable term to a binomial to make a perfect square trinomial, and then how to write that perfect square trinomial in factored form. Through various examples, the instructor shows how to complete the square to write perfect square trinomials and how to identify what needs to be added to make a perfect square. By the end of the lesson, you'll have a solid understanding of how to use this technique to solve quadratic equations.
Lesson Description:
Part 1 of Showing how to the complete the square to solve quadratic equations.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- How do you Complete the Square?
- What is Completing the Square?
- How do you add a constant to a binomial to make a perfect square trinomial and then factor it?
- How do you complete the square for x^2 - 8x?
- What can you add to x^2 - 12x to make it a perfect square?
- How do you complete the square for x^2 + 5x?
- How do you complete the square for x^2 - 9x?
- How do you complete the square for x^2 - x?
- How do you complete the square for x^2 + bx?
- How do you complete the square for x^2 - (b/a)x?
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Staff Review
This lesson explains the concept of completing the square, which is a concept that can be confusing for a lot of students. This process of finding the term that needs to be added to a binomial to make it a perfect square trinomial is very useful for solving quadratic equations.
