document.write( "Question 1143445: equations transformable to quadratic equation:
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\n" ); document.write( "1/x + 1/(x+1) = 7/12
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Algebra.Com's Answer #764253 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "\"1%2Fx+%2B+1%2F%28x%2B1%29+=+7%2F12\"\r\n" );
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document.write( "The LCD is 12x(x+1).  Put that over 1, like this \"red%28%2812x%28x%2B1%29%29%2F1%29\"\r\n" );
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document.write( "Multiply every term on both sides by it, like this:\r\n" );
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document.write( "Then cancel like this:\r\n" );
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document.write( "and what's left is\r\n" );
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document.write( "We don't need to write the 1's in the denominators, so we have:\r\n" );
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document.write( "\"12%28x%2B1%29%2B12x=7x%28x%2B1%29\"\r\n" );
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document.write( "Distribute:\r\n" );
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document.write( "\"12x%2B12%2B12x=7x%5E2%2B7x\"\r\n" );
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document.write( "Combine like terms on the left:\r\n" );
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document.write( "\"24x%2B12=7x%5E2%2B7x\"\r\n" );
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document.write( "Swap sides to get the x² term on the left\r\n" );
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document.write( "\"7x%5E2%2B7x=24x%2B12\"\r\n" );
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document.write( "Subtract the entire right side from both sides to get 0 on the right\r\n" );
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document.write( "\"7x%5E2-17x-12=0\"\r\n" );
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document.write( "That factors as\r\n" );
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document.write( "\"%287x%2B4%29%28x-3%29=0\"\r\n" );
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document.write( "Edwin
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