Identify real and complex roots using the discriminant

Identify real and complex roots using the discriminant

In this lesson you will learn how to identify real or complex roots by evaluating the discriminant of a quadratic equation.

ADDITIONAL MATERIALS

STANDARDS

CCSS.HSN-CN.C.7 Solve quadratic equations with real coefficients that have complex solutions.

TEKS.A2.4.F solve quadratic and square root equations;

IN.AII.Q.3 Use the discriminant to determine the number and type of solutions of a quadratic equation in one variable with real coefficients; find all solutions and write complex solutions in the form of a ± bi for real numbers a and b.

VA.EI.AII.3.b quadratic equations over the set of complex numbers;

FL.MAFS.912.N-CN.3.7 Solve quadratic equations with real coefficients that have complex solutions.