document.write( "Question 164463: 4 SQRT 45 - 7 SQRT 405 \n" ); document.write( "
Algebra.Com's Answer #121177 by checkley77(12844)\"\" \"About 
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4 SQRT 45 - 7 SQRT 405
\n" ); document.write( "4SQRT(9*5)-7SQRT(9*9*5)
\n" ); document.write( "4*3SQRT(5)-7*9SQRT(5)
\n" ); document.write( "12SQRT(3)-63SQRT(5)
\n" ); document.write( "(12-63)SQRT(5)
\n" ); document.write( "-51SQRT(5)
\n" ); document.write( "
\n" );