Algebraeasy · Past Paper
What is the discriminant (D) of a quadratic equation ax^2 + bx + c = 0?
Ab^2 + 4ac
Bb^2 - 4ac
C4ac - b^2
Dsqrt(b^2 - 4ac)
✓ Correct Answer: B — b^2 - 4ac
The discriminant determines the nature of the roots and is calculated as b squared minus four times a times c.
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