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0.26=0.4027-0.0112x+0.001x^2
We move all terms to the left:
0.26-(0.4027-0.0112x+0.001x^2)=0
We get rid of parentheses
-0.001x^2+0.0112x-0.4027+0.26=0
We add all the numbers together, and all the variables
-0.001x^2+0.0112x-0.1427=0
a = -0.001; b = 0.0112; c = -0.1427;
Δ = b2-4ac
Δ = 0.01122-4·(-0.001)·(-0.1427)
Δ = -0.00044536
Delta is less than zero, so there is no solution for the equation
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