Solving by Completing the square by factoring out a negative one
Interactive Video
•
Mathematics
•
11th Grade - University
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
The video tutorial explains how to complete the square to find X intercepts. It begins with isolating terms to form a perfect square trinomial, factoring out coefficients, and adjusting the trinomial. The process involves dividing the middle term by two, squaring it, and adding/subtracting it within the trinomial. The tutorial highlights common mistakes, such as not factoring out negative coefficients. Finally, it demonstrates solving for X intercepts by taking the square root and adjusting the equation.
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3 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
Explain how to create a perfect square trinomial.
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
What is the significance of the term B/2 when completing the square?
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
What mistakes do students commonly make when completing the square?
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