4x2-2x+7=0

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Solution for 4x2-2x+7=0 equation: 



4x^2-2x+7=0

a = 4; b = -2; c = +7;
Δ = b2-4ac
Δ = -22-4·4·7
Δ = -108
Delta is less than zero, so there is no solution for the equation

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