document.write( "Question 711991: Hi, I need help on solving extraneous equations. \r
\n" ); document.write( "\n" ); document.write( "(square root)3x=(squareroot)x+6\r
\n" ); document.write( "\n" ); document.write( "(squareroot)3x+2-(SR)2x+7=0\r
\n" ); document.write( "\n" ); document.write( "(SR)2x+6-(SR)x-1=2\r
\n" ); document.write( "\n" ); document.write( "thank you!
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Algebra.Com's Answer #437763 by jsmallt9(3758)\"\" \"About 
You can put this solution on YOUR website!
There are a few problems with what you posted:
  • Every equation you posted is ambiguous. None of them make clear what is inside the square root. For example, the first equation could be any of the following:
    \n" ); document.write( "\"sqrt%283%29x=sqrt%28x%29%2B6\"
    \n" ); document.write( "\"sqrt%283x%29=sqrt%28x%29%2B6\"
    \n" ); document.write( "\"sqrt%283%29x=sqrt%28x%2B6%29\"
    \n" ); document.write( "\"sqrt%283x%29=sqrt%28x%2B6%29\"
    \n" ); document.write( "You have parentheses around the words \"square root\". Putting parentheses around the radicand (the expression within a radical is called a radicand) is much more important.
  • I don't think \"extraneous equations\" is a meaningful phrase. Solving square root equations like these can result in what are called \"extraneous solutions\".
Please re-post your question using parentheses to make the equations unambiguous.
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