u^2=-28

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Solution for u^2=-28 equation: 



u^2=-28

We move all terms to the left:

u^2-(-28)=0

We add all the numbers together, and all the variables

u^2+28=0

a = 1; b = 0; c = +28;
Δ = b2-4ac
Δ = 02-4·1·28
Δ = -112
Delta is less than zero, so there is no solution for the equation

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