#### Example 3: Using the quadratic formula | Quadratic equations | Algebra I | Khan Academy - By Khan Academy

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#### DESCRIPTION:

Khan explains how to find solutions and graph them using the quadratic equation.

#### OVERVIEW:

Example 3: Using the quadratic formula | Quadratic equations | Algebra I | Khan Academy is a free educational video by Khan Academy.It helps students in grades 9,10,11,12 practice the following standards HSA.REI.B.4.b.

This page not only allows students and teachers view Example 3: Using the quadratic formula | Quadratic equations | Algebra I | Khan Academy but also find engaging Sample Questions, Apps, Pins, Worksheets, Books related to the following topics.

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1. HSA.REI.B.4.b :** Solve quadratic equations by inspection (e.g., for x2 = 49), taking square roots, completing the square, the quadratic formula and factoring, as appropriate to the initial form of the equation. Recognize when the quadratic formula gives complex solutions and write them as a ± bi for real numbers a and b..

GRADES:

**9101112**

STANDARDS:

**HSA.REI.B.4.b**