document.write( "Question 608344: I need help with figuring out how binomials can be solved when you have a fraction with a variable. For example, \r
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\n" ); document.write( "\n" ); document.write( " \"sqrt+%282%29+%2F+sqrt+%284%29\"and solve it. My teacher told me that you have to multiply the denominator by both the numerator and the denominator. so then the answer would be \"+sqrt+%288%29+%2F+4\". So i don't understand why she does that.
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Algebra.Com's Answer #383152 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
\"sqrt+%282%29+%2F+sqrt+%284%29\"
\n" ); document.write( "\"sqrt%284%29+=+2\"
\n" ); document.write( "= \"sqrt+%282%29%2F2\"
\n" ); document.write( "Not a good example.
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\n" ); document.write( "\"2%2Fsqrt%283%29\"
\n" ); document.write( "Multiply NUM & DEN by sqrt(3)
\n" ); document.write( "= \"2sqrt%283%29%2Fsqrt%289%29\"
\n" ); document.write( "= \"2sqrt%283%29%2F3\"
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\n" ); document.write( "The idea is to get the radicals out of the denominator.
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