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Fully expand (x^4+x^3+x^2+x+1)^4

 Aug 6, 2017
 #1
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x^16 + 4 x^15 + 10 x^14 + 20 x^13 + 35 x^12 + 52 x^11 + 68 x^10 + 80 x^9 + 85 x^8 + 80 x^7 + 68 x^6 + 52 x^5 + 35 x^4 + 20 x^3 + 10 x^2 + 4 x + 1 .
 
See Melody's answer to this question to learn how to calculate the coefficients:
http://web2.0calc.com/questions/what-is-the-coefficient-of-a-4b-2-in-the-expansion

 Aug 6, 2017
 #2
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Fully expand (x^4+x^3+x^2+x+1)^4

 

Use this calculator web2.0calc:

 

 

laugh

 Aug 7, 2017

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