document.write( "Question 475862: Help,Please! take me for ever solve this problem,thanks in advance
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\n" ); document.write( "I need help number 7 and 19
\n" ); document.write( "the key number 7 , n=3
\n" ); document.write( "the key number 19 , n=3
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Algebra.Com's Answer #326326 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Find a counterexample for statement.
\n" ); document.write( "\"2%5En%2B3%5En\" is divisible by \"4\"\r
\n" ); document.write( "\n" ); document.write( "answer:\r
\n" ); document.write( "\n" ); document.write( "\"n+=+0\" --> \"1+%2B+1+=+2\" is \"NOT\" divisible by \"4\"\r
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\n" ); document.write( "\n" ); document.write( "Find a counterexample for statement.
\n" ); document.write( "\"2%5En%2B2n%5E2\" is divisible by \"4\"\r
\n" ); document.write( "\n" ); document.write( "answer:\r
\n" ); document.write( "\n" ); document.write( "\"n+=+0\" --> \"2%5E0+%2B+2%2A0%5E2+=+1%2B2%2A0=1\" is \"NOT\" divisible by \"4\"
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