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Use Square Roots to Solve Quadratic Equations

Isolate the squared term, take the root of both sides

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

Use Square Roots to Solve Quadratic Equations

by CK-12 //at grade

Solve quadratic equations involving perfect squares.

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Solving Quadratics Using Square Roots

by CK-12 //at grade

This lesson covers solving quadratic equations using square roots.

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• Video

Solving Quadratic Equations Using Square Roots: A Sample Application

by CK-12 //at grade

This video demonstrates an example of solving quadratic equations using square roots.

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• Video

Solving Quadratic Equations Using Square Roots: An Explanation of the Concept

by CK-12 //at grade

This video provides an explanation of the concept of solving quadratic equations using square roots.

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Use Square Roots to Solve Quadratic Equations Quiz

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Quiz for Using Square Roots to Solve Quadratic Equations.

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• Practice
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Use Square Roots to Solve Quadratic Equations Practice

by CK-12 //at grade
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• Critical Thinking

Use Square Roots to Solve Quadratic Equations Discussion Questions

by CK-12 //at grade

A list of student-submitted discussion questions for Use Square Roots to Solve Quadratic Equations.

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Use Square Roots to Solve Quadratic Equations Pre Read

by CK-12 //at grade

To activate prior knowledge, make personal connections, reflect on key concepts, encourage critical thinking, and assess student knowledge on the topic prior to reading using a Quickwrite.

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Use Square Roots to Solve Quadratic Equations Post Read

by CK-12 //at grade

To activate prior knowledge, to generate questions about a given topic, and to organize knowledge using a KWL Chart.

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Use Square Roots to Solve Quadratic Equations Ask, Answer, Learn Table

by CK-12 //at grade

Come up with questions about a topic and learn new vocabulary to determine answers using the table

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Solving Quadratics Using Square Roots Quickwrite (PreRead)

by CK-12 //at grade

To activate prior knowledge, make personal connections, reflect on key concepts, encourage critical thinking, and assess student knowledge on the topic prior to reading using a Quickwrite.

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Solving Quadratics Using Square Roots Four Square Concept Matrix

by CK-12 //at grade

To stress understanding of a concept by summarizing the main idea and applying that understanding to create visual aids and generate questions and comments using a Concept Matrix.

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• Real World Application

Fireworks

by CK-12 //at grade

When’s the best time to blow up fireworks?

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• Real World Application

Life's a Beach

by CK-12 //at grade

Find out where quadratic functions show up on the volleyball court.

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• Study Guide

Solving Quadratic Equations Study Guide

by CK-12 //at grade

This study guide gives an overview of methods to solve quadratic functions: solving by square roots (special case), completing the square, using the quadratic formula. It also looks at using the discriminant to determine the number of solutions.

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