SOLVING QUADRATIC EQUATIONS



SOLVING QUADRATIC EQUATIONS

STANDARD FORM

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Solve by:

1. Factoring

2. Quadratic formula

3. Completing the Square (analytic tool)

4. Calculator

I. Factoring:

Zero-Product Property: If ab = 0, the a = 0 or b = 0

Example #1:

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Example #2:

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II. Quadratic Formula: [pic]

Example #3: [pic]

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Example #4: Solve the following equation using the Quadratic Formula. Find the exact solutions. Then approximate the radical solution. Round to the nearest hundredth.

[pic] To simplify the problem, divide both sides of the equation by 2.

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Example #5: Solve the following equation using any method.

[pic] Cross multiply first!

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III. Calculator: 2nd Calc button ( zeros

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