document.write( "Question 336119: Multiply\r
\n" ); document.write( "\n" ); document.write( "(√5+3√8)(√5-3√8) \n" ); document.write( "

Algebra.Com's Answer #241079 by jsmallt9(3758) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"%28sqrt%285%29%2B3sqrt%288%29%29%28sqrt%285%29-3sqrt%288%29%29\"$
\n" ); document.write( "You could use FOIL to multiply this. But the easy way is to recognize that
\n" ); document.write( " $\"%28sqrt%285%29%2B3sqrt%288%29%29%28sqrt%285%29-3sqrt%288%29%29\"$
\n" ); document.write( "fits the pattern of
\n" ); document.write( " $\"%28a%2Bb%29%28a-b%29+=+a%5E2+-+b%5E2\"$
\n" ); document.write( "with
\n" ); document.write( " $\"a+=+sqrt%285%29\"$ and $\"b+=+3sqrt%288%29\"$ .
\n" ); document.write( "So
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