Khan Academy Static

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

2258_Worked_example_quadratic_formula_example_2_.html

2262_Quadratic_equations_word_problem.html

2259_Worked_example_quadratic_formula_negative_coefficients_.html

2255_The_quadratic_formula.html

2260_Using_the_quadratic_formula_number_of_solutions.html

2261_Proof_of_the_quadratic_formula.html

2257_Worked_example_quadratic_formula.html

2256_Using_the_quadratic_formula.html

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