SOLUTION: (x+x^2+x^3+x^4+x^5+x^6+x^7)/(x^-3+x^-4+x^-5+x^-6+x^-7+x^-8+x^-9)

Algebra ->  Algebra  -> Exponential-and-logarithmic-functions -> SOLUTION: (x+x^2+x^3+x^4+x^5+x^6+x^7)/(x^-3+x^-4+x^-5+x^-6+x^-7+x^-8+x^-9)      Log On

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Question 30380: (x+x^2+x^3+x^4+x^5+x^6+x^7)/(x^-3+x^-4+x^-5+x^-6+x^-7+x^-8+x^-9)
Answer by Fermat(127) About Me  (Show Source):
You can put this solution on YOUR website!
%28x%2Bx%5E2%2Bx%5E3%2Bx%5E4%2Bx%5E5%2Bx%5E6%2Bx%5E7%29%2F%28x%5E-3%2Bx%5E-4%2Bx%5E-5%2Bx%5E-6%2Bx%5E-7%2Bx%5E-8%2Bx%5E-9%29
Take out x^(-10) as a common factor in the donominator. This gives,
%28x%2Bx%5E2%2Bx%5E3%2Bx%5E4%2Bx%5E5%2Bx%5E6%2Bx%5E7%29%2F%28x%5E-10%29%28x%5E7%2Bx%5E6%2Bx%5E5%2Bx%5E4%2Bx%5E3%2Bx%5E2%2Bx%29
The two polynomials in the numerator and denominator are the same, Cancel them. This gives,
1%2Fx%5E-10
which equals,
x%5E10