document.write( "Question 1104266: Rationalize the denominator and simplify if possible\r
\n" ); document.write( "\n" ); document.write( "63/ Square root 7
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Algebra.Com's Answer #719006 by Theo(13342)\"\" \"About 
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rationalize the denominator means to take it out of the square root sign.\r
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\n" ); document.write( "\n" ); document.write( "start with 63 / sqrt(7)\r
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\n" ); document.write( "\n" ); document.write( "multiply both numerator and denominator by sqrt(7) and you will get 63 * sqrt(7) / 7\r
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\n" ); document.write( "\n" ); document.write( "the denominator has now been rationalized.\r
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\n" ); document.write( "\n" ); document.write( "since 63 / 7 = 9, then the expression can be simplified to 9 * sqrt(7).\r
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\n" ); document.write( "\n" ); document.write( "you can confirm by evaluating the original expression of 63 / sqrt(7) and seeing that the value is that same as 9 * sqrt(7).\r
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\n" ); document.write( "\n" ); document.write( "it is.\r
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