INSTRUCTORSCarleen EatonGrant Fraser

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Quadratic Formula and the Discriminant

  • The quadratic formula can be used to solve any quadratic equation.

  • If you do not see an easy way to factor a quadratic equation, use the formula.

  • If the discriminant is positive, the equation has 2 real roots.

  • If the discriminant is 0, it has one rational root.

  • If the discriminant is negative, it has two complex conjugate roots.

Quadratic Formula and the Discriminant

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Mathematics: Algebra 2