document.write( "Question 44881: 3333333334 squared equals a 20 digit number. What is the sum of the digits?
\n" ); document.write( "I have to find a pattern and answer the question.\r
\n" ); document.write( "\n" ); document.write( "I squared 4 which means 16 and then what do I do with the 9 3's
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Algebra.Com's Answer #29742 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
You're given a 10-digit number to square
\n" ); document.write( "\"3333333334+=+3333333333+%2B+1\"
\n" ); document.write( "\"%283333333333+%2B+1%29%5E2+=+3333333333%5E2+%2B+2%283333333333%29+%2B+1\"
\n" ); document.write( "this is just \"%28a+%2B+b%29%5E2+=+a%5E2+%2B+2ab+%2B+b%5E2\"
\n" ); document.write( "The last 2 terms are 6666666666 +1
\n" ); document.write( "The digits add up to 61
\n" ); document.write( "what about \"3333333333%5E2\"?
\n" ); document.write( "with my calculator,
\n" ); document.write( "\"33%5E2+=+1089\"
\n" ); document.write( "\"333%5E2+=+110889\"
\n" ); document.write( "\"3333%5E2+=+11108889\"
\n" ); document.write( "looking ahead,
\n" ); document.write( "\"3333333333%5E2+=+11111111108888888889\"
\n" ); document.write( "The digits add up to \"9+%2B+72+%2B+9+=+90\"
\n" ); document.write( "\"90+%2B+61+=+151\" answer
\n" ); document.write( "unless I made a mistake
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