document.write( "Question 376609: This problem is from Prentice Hall's Algebra 2 with trigonometry. (2x + 3)/(x-1) = 10/(x^2-1) + (2x-3)/(x+1) I am a mom helping several of the students with their math homework. However, I got the same answer they did on this problem but the book says there is no solution. We all got x = 1. What are we doing wrong. Thanks so much Debbie \n" ); document.write( "
Algebra.Com's Answer #267905 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
When you multiply every term by the LCD \"x%5E2-1\", you get the equation\r
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\n" ); document.write( "\n" ); document.write( "\"%282x+%2B+3%29%28x%2B1%29=10%2B%282x-3%29%28x-1%29\"\r
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\n" ); document.write( "\n" ); document.write( "If you solve the equation above, you get the solution \"x=1\". However, you must check your solution by plugging it into the original equation.\r
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\n" ); document.write( "\n" ); document.write( "This is where the problem lies. If you plug in \"x=1\" into \"%282x+%2B+3%29%2F%28x-1%29+=+10%2F%28x%5E2-1%29+%2B+%282x-3%29%2F%28x%2B1%29+\", you get\r
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\n" ); document.write( "\n" ); document.write( "\"%282%281%29+%2B+3%29%2F%281-1%29+=+10%2F%281%5E2-1%29+%2B+%282%281%29-3%29%2F%281%2B1%29+\"\r
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\n" ); document.write( "\n" ); document.write( "which then becomes\r
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\n" ); document.write( "\n" ); document.write( "\"5%2F0+=+10%2F0+%2B+-1%2F2+\"\r
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\n" ); document.write( "\n" ); document.write( "Since you CANNOT divide by zero, this means that \"x=1\" is NOT in the domain. So this means that \"x%3C%3E1\"\r
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\n" ); document.write( "\n" ); document.write( "This then means that \"x=1\" is NOT a solution.\r
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\n" ); document.write( "\n" ); document.write( "So there are no solutions.\r
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\n" ); document.write( "\n" ); document.write( "If you need more help, email me at jim_thompson5910@hotmail.com\r
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\n" ); document.write( "\n" ); document.write( "Also, feel free to check out my tutoring website\r
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\n" ); document.write( "\n" ); document.write( "Jim
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