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lesson

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High School Algebra Playlist: Solving Quadratic Equations

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Wisewire

Subject Math — Algebra

Grade Level Grades 9-12

Resource Type Lesson Plan

Standards Alignment

State-specific

License

Attribution Non-commercial ShareAlike

CC (BY-NC-SA)

About This Lesson

There are several ways to solve quadratic equations, a polynomial equation of degree 2. You can choose your method of solution depending on the form of the equation.
As you solve for x, you may encounter a situation in which you are taking the square root of a negative number. You
express the solution as a complex number.

In this module, you will learn and practice the following skills:

Choose a method for solving a quadratic equation
Write complex solutions when appropriate

Enjoy this lesson on quadratic equations?

Check out more free lesson plans and resources on Share My Lesson in the Learning at Home: High School Collection.

Advanced Placement (AP)

High School Lesson Plan Template

Lesson Plans for High School

Resources

Files

Math Mini-Module HSA.REI_.B.4.b_SE.pdf

Lesson Plan

February 13, 2020

1.04 MB

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Standards

CCSS.Math.Content.HSA-REI.B.4b

Solve quadratic equations by inspection (e.g., for ?² = 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 ? ± ?? for real numbers ? and ?.