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(P)=P3+2P^2-P+3
We move all terms to the left:
(P)-(P3+2P^2-P+3)=0
We get rid of parentheses
-2P^2-P3+P+P-3=0
We add all the numbers together, and all the variables
-2P^2-1P^3+2P-3=0
We do not support ePpression: P^3
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