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**Solving Quadratic Equations by Completing the Square**

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**Perfect Square Trinomials**

Examples x2 + 6x + 9 x2 - 10x + 25 x2 + 12x + 36

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**Creating a Perfect Square Trinomial**

In the following perfect square trinomial, the constant term is missing X2 + 14x + ____ Find the constant term by squaring half the coefficient of the linear term. (14/2) X2 + 14x + 49

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**Perfect Square Trinomials**

Create perfect square trinomials. x2 + 20x + ___ x2 - 4x + ___ x2 + 5x + ___ 100 4 25/4

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**Solving Quadratic Equations by Completing the Square**

Solve the following equation by completing the square: Step 1: Only quadratic term and linear term on the left side of the equation

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**Solving Quadratic Equations by Completing the Square**

Step 2: Find the term that completes the square on the left side of the equation. Add that term to both sides.

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**Solving Quadratic Equations by Completing the Square**

Step 3: Factor the perfect square trinomial on the left side of the equation. Simplify the right side of the equation.

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**Solving Quadratic Equations by Completing the Square**

Step 4: Take the square root of each side

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**Solving Quadratic Equations by Completing the Square**

Step 5: Set up the two possibilities and solve

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**Completing the Square-Example #2**

Solve the following equation by completing the square: Step 1: Only quadratic term and linear term on the left side of the equation. Constant term on the right side of the equation.

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**Solving Quadratic Equations by Completing the Square**

Step 2: Find the term that completes the square on the left side of the equation. Add that term to both sides. The quadratic coefficient must be equal to 1 before you complete the square, so you must divide all terms by the quadratic coefficient first.

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**Solving Quadratic Equations by Completing the Square**

Step 3: Factor the perfect square trinomial on the left side of the equation. Simplify the right side of the equation.

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**Solving Quadratic Equations by Completing the Square**

Step 4: Take the square root of each side

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**Solving Quadratic Equations by Completing the Square**

Try the following examples. Do your work on your paper and then check your answers.

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Solving Quadratic Equations – Completing the Square It is assumed you have already watched the slideshow demonstrating how to complete the square on a.

Solving Quadratic Equations – Completing the Square It is assumed you have already watched the slideshow demonstrating how to complete the square on a.

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