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=1.65P^2+18.25P+155
We move all terms to the left:
-(1.65P^2+18.25P+155)=0
We get rid of parentheses
-1.65P^2-18.25P-155=0
a = -1.65; b = -18.25; c = -155;
Δ = b2-4ac
Δ = -18.252-4·(-1.65)·(-155)
Δ = -689.9375
Delta is less than zero, so there is no solution for the equation
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