CA Algebra I: Quadratic equation | Quadratic odds and ends | Khan Academy

CA Algebra I: Quadratic equation | Quadratic odds and ends | Khan Academy

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日期:2025-04-25
53-57, Quadratic Equation ... PS: ^2 means squared (to the second). Completing the square means that you add a number onto a quadratic equation so you can factor it into a perfect square, like (x-9)^2....看更多