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x^2+2.8284271247451x+2=0
a = 1; b = 2.8284271247451; c = +2;
Δ = b2-4ac
Δ = 2.82842712474512-4·1·2
Δ = -6.16662276798E-12
Delta is less than zero, so there is no solution for the equation
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