document.write( "Question 190509: Can you please answer this problem? (3 times the square root of 20)-(7 times the square root of 45) \n" ); document.write( "

Algebra.Com's Answer #142967 by Alan3354(69443) $\"\"$ $\"About$

You can put this solution on YOUR website!
Can you please answer this problem? (3 times the square root of 20)-(7 times the square root of 45)
\n" ); document.write( " $\"3sqrt%2820%29+-+7sqrt%2845%29\"$
\n" ); document.write( "sqrt(20) = sqrt(4)*sqrt(5) = 2sqrt(5)
\n" ); document.write( "sqrt(45) = sqrt(9)*sqrt(5) = 3sqrt(5)
\n" ); document.write( "---------------
\n" ); document.write( " $\"3sqrt%2820%29+-+7sqrt%2845%29\"$
\n" ); document.write( "= $\"6sqrt%285%29+-+21sqrt%285%29\"$
\n" ); document.write( "= $\"-15sqrt%285%29\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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