SOLUTION: How can i solve this? 4/(x^4+x^2+1) + (x^2+x-1)/(x^2-x+1) + (x^2-x-1)/(x^2+x+1) The answer is 2! I need the process

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: How can i solve this? 4/(x^4+x^2+1) + (x^2+x-1)/(x^2-x+1) + (x^2-x-1)/(x^2+x+1) The answer is 2! I need the process      Log On


   

Question 739891: How can i solve this?
4/(x^4+x^2+1) + (x^2+x-1)/(x^2-x+1) + (x^2-x-1)/(x^2+x+1)
The answer is 2!
I need the process
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
....common denominator


=....multiply all in numerator

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=

=
=

=2%28x%5E8%2B2x%5E6%2B3x%5E4%2B2x%5E2%2B1+%29%2F%28x%5E8%2B2x%5E6%2B3x%5E4%2B2x%5E2%2B1%29

=

=2