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Solving Quadratic Equations by Completing the Square

Solving Quadratic Equations by Completing the Square

Description:
  1. Introduce the concept of completing the square and present to a learning how to recognize if a quadratic equation can/should be solved by completing the square.

  2. Demonstrate how to complete the square to write a perfect square trinomial (ex. Find the vale of c that makes x2 + 8 + c a perfect square trinomial).

  3. Demonstrate how to solve quadratic equations by completing the square, presenting examples where a = 1 and a ≠ 1.

This packet should help a learner seeking to understand how to solve for quadratic equations by completing the square.

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Tutorial

Introduction to Completing the Square

This video introduces the concept of completing the square.

Source: ChristinaPease

Completing the Square When a Does Not Equal 1

This video demonstrates how to complete the square when a does not equal 1.

Source: ChristinaPease

Completing the Square

This video demonstrates how to complete the square on three different example problems.

Source: ChristinaPease