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10 cards from this deck
Δ\DeltaΔ (Delta)
b2−4acb^2 - 4acb2−4ac
Two distinct real roots
One real root (repeated)
No real roots (complex)
Opens upwards
Opens downwards
x=−b2ax = -\frac{b}{2a}x=−2ab
ccc
Δ>0\Delta > 0Δ>0
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