document.write( "Question 604688: Rewrite the quadratic equation in standard form by completing the square.
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document.write( "f(x)=x^2+8x+14
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document.write( "Answer (f(x)= (x, plus or minus ___)^2 plus or minus ____\r
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document.write( "I have worked this to x, 4 as well as x, -4. I have also come up with x, +8.\r
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document.write( "Also for the second answer I have some up with +14 or sqrt 2. \n" );
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Algebra.Com's Answer #381347 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! x^2 + 8x + 16 is (x + 4)^2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "when you add 2 to complete the square, you must also subtract 2 so the value of the expression stays constant\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "f(x) = x^2 + 8x + 14 + 2 - 2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "f(x) = x^2 + 8x + 16 - 2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "f(x) = (x + 4)^2 - 2 ___ this is called the vertex form of the equation, the vertex of the parabola is (-4,-2) \n" ); document.write( " |