document.write( "Question 222506: find C(10,4) \n" ); document.write( "
Algebra.Com's Answer #166615 by Edwin McCravy(20086)\"\" \"About 
You can put this solution on YOUR website!
C(10,4)
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document.write( "The formula is\r\n" );
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document.write( "\"C%28n%2Cr%29+=+n%21%2F%28r%21%28n-r%29%21%29\"\r\n" );
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document.write( "Substituting:\r\n" );
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document.write( "Cancel the \"6%2A5%2A4%2A3%2A2%2A1\"s:\r\n" );
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document.write( "\"C%2810%2C4%29+=%2810%2A9%2A8%2A7%29%2F%284%2A3%2A2%2A1%29\"\r\n" );
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document.write( "Cancel the \"4\" and \"2\" in the bottom into \r\n" );
document.write( "the \"8\" on top\r\n" );
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document.write( "\"C%2810%2C4%29+=%2810%2A9%2Across%288%29%2A7%29%2F%28cross%284%29%2A3%2Across%282%29%2A1%29\"\r\n" );
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document.write( "\"C%2810%2C4%29+=%2810%2A9%2A7%29%2F%283%2A1%29\"\r\n" );
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document.write( "Cancel the 3 in the bottom into the 9 on top leaving 3 on top:\r\n" );
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document.write( "        \"3\"\r\n" );
document.write( "\"C%2810%2C4%29+=%2810%2Across%289%29%2A7%29%2F%28cross%283%29%2A1%29\"\r\n" );
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document.write( "\"C%2810%2C4%29+=%2810%2A3%2A7%29%2F%281%29\"\r\n" );
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document.write( "\"C%2810%2C4%29=210\"\r\n" );
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document.write( "Edwin
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