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{root[6][729]}
1.3*a-((0.7/(0.05^2))*b) = (7850*(3.3/8)*314.17^2*0.05^2-10*10^6)/((2.1*10^11)/(1-0.3^2))
2*x^2-abs(x) >= 0
{root[7][-128]}
{root[3][343]}
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