B b 2 4 a c. Solving Equations Video Lesson Khan Academy Video. In algebra a quadratic equation from the Latin quadratus for square is any equation that can be rearranged in standard form as ax²bxc0 where x represents an unknown and a b and c represent known numbers where a 0.
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3x2-2x-10 After you click the example change the Method to Solve By Completing the Square Take the Square Root. The solver will then show you the steps to help you learn how to solve it on your own. Reason abstractly and quantitatively. Our online system of equations calculator helps you to solve for any unknown varriables xz n m and y.