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5u^2+26=-5
We move all terms to the left:
5u^2+26-(-5)=0
We add all the numbers together, and all the variables
5u^2+31=0
a = 5; b = 0; c = +31;
Δ = b2-4ac
Δ = 02-4·5·31
Δ = -620
Delta is less than zero, so there is no solution for the equation
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