INSTRUCTORSCarleen EatonGrant Fraser
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For more information, please see full course syllabus of Algebra 2
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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

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.