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n^2=(27/7)^2
We move all terms to the left:
n^2-((27/7)^2)=0
We add all the numbers together, and all the variables
n^2-((+27/7)^2)=0
We multiply all the terms by the denominator
n^2*7)^2)-((+27=0
Wy multiply elements
7n^3+27=0
We do not support enpression: n^3
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