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x^2+1/x^2+x-1/x-4=0
Domain of the equation: x^2!=0
x^2!=0/
x^2!=√0
x!=0
x∈R
Domain of the equation: x!=0We add all the numbers together, and all the variables
x∈R
x^2+x+1/x^2-1/x-4=0
We calculate fractions
We do not support expression: x^3
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