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ax2 + bx + c = 0 is a quadratic equation if
ax2 + bx + c = 0 is a quadratic equation if a ≠ 0.
The discriminant of a quadratic equation is given by
The discriminant of a quadratic equation is given by .
The condition for real and equal roots is
The condition for real and equal roots is b2 - ac = 0.
The condition for real and unequal roots is
The condition for real and equal roots is b2 - ac > 0.
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