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0=(-16.574/38² + 2* 0.52754/38^3 + 1.5*12.187)*2.5 + (-0.3879 + 12.187*38)*x
0=(-16.574/38² + 2* 0.52754/38^3 + 1.5*12.187)*2.5 + (-0.3879 + 12.187*38)*x
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