document.write( "Question 94371: 2/(3+sqrt5)
\n" ); document.write( "please help i forgot how to deal with the denominator \n" ); document.write( "

Algebra.Com's Answer #68720 by Earlsdon(6294) $\"\"$ $\"About$

You can put this solution on YOUR website!
Simplify? We don't like to see radicals in the denominator, so...
\n" ); document.write( " $\"2%2F%28%283%2Bsqrt%285%29%29%29\"$ Multiply the numerator and the denominator by conjugate of the denominator which is ( $\"3-sqrt%285%29\"$ ).
\n" ); document.write( " $\"2%283-sqrt%285%29%29%2F%283%2Bsqrt%285%29%29%283-sqrt%285%29%29\"$ Simplify the denominator.
\n" ); document.write( " $\"2%283-sqrt%285%29%29%2F%289-%28sqrt%285%29%29%28sqrt%285%29%29%29\"$ Simplify some more.
\n" ); document.write( " $\"2%283-sqrt%285%29%29%2F%289-5%29\"$
\n" ); document.write( " $\"2%283-sqrt%285%29%29%2F4\"$ Cancel a 2 in the top & bottom.
\n" ); document.write( " $\"%283-sqrt%285%29%29%2F2\"$ \n" ); document.write( "

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