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s=1/2*31*8^2
We move all terms to the left:
s-(1/2*31*8^2)=0
We get rid of parentheses
s-1/2*31*8^2=0
We multiply all the terms by the denominator
s*2*31*8^2-1=0
Wy multiply elements
496s^3*3-1=0
We do not support espression: s^3
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