Khan Academy Static

Learn how to solve any quadratic equation with the most general tool of all, the quadratic formula!

7553_Worked_example_quadratic_formula_negative_coefficients_.html

7549_The_quadratic_formula.html

7552_Worked_example_quadratic_formula_example_2_.html

7550_Using_the_quadratic_formula.html

7555_Proof_of_the_quadratic_formula.html

7556_Quadratic_equations_word_problem.html

7554_Using_the_quadratic_formula_number_of_solutions.html

7551_Worked_example_quadratic_formula.html

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