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Algebra - The Quadratic Formula
| Content Provider | WatchKnowLearn |
|---|---|
| Description | In this lesson, students learn to solve quadratic equations in the form ax^2 + bx + c = 0 using the quadratic formula, which states that x = -b plus or minus the square root of b^2 -- 4ac over 2a. For example, to solve the equation x^2 -- 3x -- 8 = 0, since a = 1, b = -3, and c = -8, the quadratic formula states that x = 3 plus or minus the square root of (-3)^2 -- 4(1)(-8) over 2(1). Simplifying on the right side of the equation, x = 3 plus or minus the square root of 9 + 32 over 2, or x = 3 plus or minus the square root of 41 over 2, which is the final answer. |
| Language | English |
| Access Restriction | Open |
| Rights License | Proprietary |
| Subject Keyword | k-12 homeschool homeschooling home school parents educational videos Quadratic Formula k12 preK-12 Algebra Equations Quadratic Equations Mathematics Solving Quadratic Equations |
| Content Type | Video |
| Educational Role | Student Teacher |
| Educational Use | Self Learning Lecture |
| Education Level | Class VIII Class IX Class VII Class X |
| Pedagogy | Chalk-and-talk Lecture cum Demonstration |
| Resource Type | Video Lecture |
| Subject | Quadratic Equation |
