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(P)=-40P^2+2.240P-17.000
We move all terms to the left:
(P)-(-40P^2+2.240P-17.000)=0
We get rid of parentheses
40P^2-2.240P+P+17.000=0
We add all the numbers together, and all the variables
40P^2-1.24P+17=0
a = 40; b = -1.24; c = +17;
Δ = b2-4ac
Δ = -1.242-4·40·17
Δ = -2718.4624
Delta is less than zero, so there is no solution for the equation
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