amy721
04.05.2021 •
Mathematics
What is the discriminant for the following quadratic?
x^2 - 2x - 4
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Ответ:
20
Step-by-step explanation:
The discriminant of a quadratic is the expression inside the radical of the quadratic formula.
b^2-4(ac)
Substitute in the values of a , b , and c .
(-2)^2-4(1*-4)
Elevate the result to find the discriminant.
4+16
=20
Ответ: