document.write( "Question 1058454: Rationalize the denominator
\n" ); document.write( "(√ 7)/(√ 3+2)
\n" ); document.write( "I got as far as
\n" ); document.write( "(√ 7)/(√ 3+2) * (√ 3-2)/(√ 3-2)
\n" ); document.write( "[(√ 7)(√ 3+2)]/(√ 3)^2-(2)^2
\n" ); document.write( "[(√ 7)(√ 3+2)]/3+4
\n" ); document.write( "[(√ 7*√3)-(2√2)]/7
\n" ); document.write( "[(√21)-(2√2)]/7
\n" ); document.write( "My book is saying that the answer is (√21)-(2√2) Without a denominator. Did I do something wrong or is the book wrong (it's been wrong before). \n" ); document.write( "

Algebra.Com's Answer #673510 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Your denominator should be $\"3-4\"$ not $\"3%2B4\"$
\n" ); document.write( " $\"%28sqrt%283%29%2B2%29%28sqrt%283%29-2%29=3-2sqrt%283%29%2B2sqrt%283%29-4=3-4=-1\"$
\n" ); document.write( "Final answer should be,
\n" ); document.write( " $\"sqrt%287%29%282-sqrt%283%29%29\"$
\n" ); document.write( " \n" ); document.write( "

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