Discriminants (MATH)

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Last updated 3:01 PM on 7/8/26
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7 Terms

1
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What is the discriminant of a quadratic equation?

b²-4ac

2
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If b²-4ac>0, describe it

It has 2 real solutions

3
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If b²-4ac=0, describe it

It has 1 real solution

4
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If b²-4ac<0, describe it

It has no real solution

5
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Find the discriminant of x² + 5x + 6 = 0.

1

6
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Find the discriminant of x² + 4x + 4 = 0.

0

7
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Find the discriminant of x² + 2x + 5 = 0.

-16