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(X)=X2-X4+1
We move all terms to the left:
(X)-(X2-X4+1)=0
We add all the numbers together, and all the variables
-(+X^2-1X^4+1)+X=0
We get rid of parentheses
-X^2+1X^4+X-1=0
We do not support eXpression: X^4
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