document.write( "Question 1057744: If we add 2m to a side of a square its surface will increase with 24 s.m. Find the side of the square. \n" ); document.write( "
Algebra.Com's Answer #672753 by math_helper(2461)\"\" \"About 
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Original square: \"+x%5E2+=+A+\"
\n" ); document.write( "Expanded square: \"+%28x%2B2%29%5E2+=+A%2B24+\"\r
\n" ); document.write( "\n" ); document.write( "From the top equation, we can substitute \"x%5E2\" for A in the bottom one:\r
\n" ); document.write( "\n" ); document.write( " \"+%28x%2B2%29%5E2+=+%28x%5E2%29%2B24+\"
\n" ); document.write( " \"+x%5E2%2B4x%2B4+=+x%5E2+%2B+24+\"
\n" ); document.write( " \"++4x%2B4+=+24+\" (subtracted \"x%5E2\" from both sides
\n" ); document.write( " \"++x%2B1+=+6+\"
\n" ); document.write( " Ans: \"+x=5m+\"\r
\n" ); document.write( "\n" ); document.write( "Check:
\n" ); document.write( " \"+A=5%5E2+=+25+m%5E2+\"
\n" ); document.write( " and \"+%285%2B2%29%5E2+=+7%5E2+=+49+m%5E2\" which is 24 more than 25
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