document.write( "Question 824889: find the tenth term in the expansion of (x+3)^12 \n" ); document.write( "
Algebra.Com's Answer #496853 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
find the tenth term in the expansion of (x+3)^12
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document.write( "The \"R\"th term of \"%28A%2BB%29%5EN\" is given by\r\n" );
document.write( "this expression:\r\n" );
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document.write( "\"%28matrix%282%2C1%2CN%2CR-1%29%29A%5E%28N-R%2B1%29B%5E%28R-1%29\"\r\n" );
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document.write( "where \"%28matrix%282%2C1%2Cp%2Cq%29%29\" means the same as \"C%28p%2Cq%29\" or \"pCq\" \r\n" );
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document.write( "In your problem \"A=x\", \"B=3\", \"N=12\", \"R=10\"\r\n" );
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document.write( "So we substitute those and get\r\n" );
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document.write( " \"%28matrix%282%2C1%2C12%2C10-1%29%29%28x%29%5E%2812-10%2B1%29%283%29%5E%2810-1%29\"\r\n" );
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document.write( "\"%28matrix%282%2C1%2C12%2C9%29%29%28x%29%5E%283%29%283%29%5E%289%29\"\r\n" );
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document.write( "\"%28220%29%28x%5E3%29%2819683%29\"\r\n" );
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document.write( "\"4330260x%5E3\"\r\n" );
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document.write( "The entire expansion is:\r\n" );
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document.write( "Edwin
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