Which number is the discriminant of a quadratic equation that has no solution? 1) 0
2) 36
3) -4
4) 5

-4

Step-by-step explanation:

If the discriminant is negative there can be no real number solution because the square root of a negative number does not exist (in real numbers).

In the Quadratic Formula, if    is negative, then you can't find  .

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