Solving a Quadratic Equation for a Variable
In this lesson, we learn how to solve a quadratic equation for a variable. The problem presented is a literal equation that doesn't have any numbers, making it tricky to solve. By circling the variable and undoing everything that's happening to it, we can isolate the variable and solve the equation. In this specific example, we subtract the C and BX from A, then divide by X squared to get A by itself.
Solving a quadratic equation for a variable
I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exactly how to solve math problems step by step. The problems are done in real time and in front of a regular classroom. These videos are intended to help you learn how to solve math problems, review how to solve a math problems, study for a test, or finish your homework. I post all of my videos on YouTube, but if you are looking for other ways to interact with me and my videos you can follow me on the following pages through My Blog, Twitter, or Facebook.
- How do I solve for one variable in a literal equation in terms of the other variables?
- How do I solve for a in the equation y=ax^2+bx+c?
-
Staff Review
This lesson shows an example of how to solve for one variable in a literal equation in terms of the other variables in the equation.
