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P in (-oo:+oo)
101.325/713 = (P^2)/273 // - (P^2)/273
101.325/713-((P^2)/273) = 0
-1/273*P^2 = -0.1421108 // : -1/273
P^2 = 38.7962872
P^2 = 38.7962872 // ^ 1/2
abs(P) = 38.7962872^(1/2)
P = 38.7962872^(1/2) or P = -38.7962872^(1/2)
P in { 38.7962872^(1/2), -38.7962872^(1/2) }
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