document.write( "Question 282385: which one is correct?\r
\n" ); document.write( "\n" ); document.write( " $\"10x%5E2%2A10x%5E7=10x%5E9\"$ \r
\n" ); document.write( "\n" ); document.write( "or\r
\n" ); document.write( "\n" ); document.write( " $\"10x%5E2%2A10x%5E7=100x%5E9\"$ \n" ); document.write( "

Algebra.Com's Answer #205041 by Alan3354(69443) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"10x%5E2%2A10x%5E7+=+10%2A10%2Ax%5E2%2Ax%5E7\"$
\n" ); document.write( "= $\"100x%5E9\"$
\n" ); document.write( "----------------
\n" ); document.write( "if x = 2:
\n" ); document.write( "10x^2 = 40
\n" ); document.write( "10x^7 = 1280
\n" ); document.write( "40*1280 = 51200
\n" ); document.write( "----------------
\n" ); document.write( "100*2^9 = 51200
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\n" ); document.write( "If x = 1:
\n" ); document.write( "10x^2 = 10
\n" ); document.write( "10x^7 = 10
\n" ); document.write( "10*10 = 100
\n" ); document.write( "-----------
\n" ); document.write( "100*1^9 = 100\r
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