Fill each blank with the correct answer.
The expression b2 - 4ac is called the ________. The value of the ______ can be used to describe the nature of the roots of a _________. If b 2 − 4ac > 0, then the equation has ___ distinct real roots in which if the discriminant is a perfect square, then it has two _______, rational and _________ numbers. Otherwise, if the discriminant is not a perfect square, then it has two real ________ and _________. If b 2 − 4ac = 0, the equation has ___ real root. If b 2 − 4ac < 0, then the equation has ____ real roots. The solutions are two non-real or ________ and unequal numbers.
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