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(2(43.0)+ 2(3.74)^2/1.62) +- sqrt( ( (2(43.0) + 2(3.74)^2/3.74))^2 - 4(43.0)^2)
(2(43.0)+ 2(3.74)^2/1.62) +- sqrt( ( (2(43.0) + 2(3.74)^2/3.74))^2 - 4(43.0)^2)
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