Square Root Property of Equations 2
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Lesson Summary:
In this lesson, we learn about the square root property of equations, which is an efficient method of solving quadratic equations. Through working with complex and imaginary numbers, we use the property to solve several examples, including x squared plus 5 equals 1 and x minus 3 squared equals 4. By isolating the squared variable and taking the square root of both sides, we find the solutions, ensuring to include both positive and negative solutions when applicable. We also learn how to check our solutions to make sure they are correct.
Lesson Description:
Part 2 of How to solve quadratic equations using the square root property of equations.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- What is the square root property of equations?
- How do you solve and check x^2 + 5 = 1?
- How do you solve x^2 = -4?
- What is the square root of -4?
- How do you solve and check (x - 3)^2 = 4?
- How do you solve and check (x + 3)^2 = 5?
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Staff Review
This lesson goes through some slightly more difficult problems involving solving quadratic equations using the square root property of equations. The equations are split up into two parts and two solutions are obtained. All steps are shown and explained.
