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(2+x)x3=x+22
We move all terms to the left:
(2+x)x3-(x+22)=0
We add all the numbers together, and all the variables
(x+2)x3-(x+22)=0
We multiply parentheses
x^4+2x^3-(x+22)=0
We get rid of parentheses
x^4+2x^3-x-22=0
We do not support expression: x^4
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