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please

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in Chennai spritclub

u r you and sexy in ur profile

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Δ must be ≥ 0, because expression in √ must be no negative, so a ≥ -0.5:

If a > -0.5 equation has 2 different real solutions,

if a = -0.5 equation has 1 dual real solution,

if a < =0.5 equation has no real solution (it has solutions, which are complex numbers).