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
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Questions answered by this video:
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?
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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.