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Solving Quadratic Equations

Solving Quadratic Equations - 4 Solve each of these...

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Solving Quadratic Equations A quadratic equation is an equation that could be written as   ax 2  +  bx  +  c  = 0  when  a  0.  There are three basic methods for solving quadratic equations: factoring, using the quadratic  formula, and completing the square.  Factoring To solve a quadratic equation by factoring,  1. Put all terms on one side of the equal sign, leaving zero on the other side. 2. Factor. 3. Set each factor equal to zero.
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Unformatted text preview: 4. Solve each of these equations. 5. Check by inserting your answer in the original equation. Example 1 Solve x 2 – 6 x = 16. Following the steps, x 2 – 6 x = 16 becomes x 2 – 6 x – 16 = 0 Factor. ( x – 8)( x + 2) = 0 Setting each factor to zero, Then to check, Both values, 8 and –2, are solutions to the original equation....
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