-4x^2-8x-21=0

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Solution for -4x^2-8x-21=0 equation: 



-4x^2-8x-21=0

a = -4; b = -8; c = -21;
Δ = b2-4ac
Δ = -82-4·(-4)·(-21)
Δ = -272
Delta is less than zero, so there is no solution for the equation

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