document.write( "Question 39892: which of the following could be a term in the expansion of (x+y)^7\r
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document.write( "1. 35xy^7
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document.write( "2. 35x^8 y^-1
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document.write( "3. 35 x^7 y
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document.write( "4. 35 x^2 y^8
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document.write( "5. 35 x^3 y^4 \n" );
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Algebra.Com's Answer #25337 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! Only choice 5 is possible. \n" ); document.write( "The coefficient, found from Pascal's Triangle (or other means) of both the x^7y and xy^7 terms are both 7... \n" ); document.write( "The powers of x and y must add to seven... \n" ); document.write( "The only choice left is choice 5. \n" ); document.write( " |