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x^2=-28.2
We move all terms to the left:
x^2-(-28.2)=0
We add all the numbers together, and all the variables
x^2+28.2=0
a = 1; b = 0; c = +28.2;
Δ = b2-4ac
Δ = 02-4·1·28.2
Δ = -112.8
Delta is less than zero, so there is no solution for the equation
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