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What is the discriminant for the following quadratic?
x^2 - 2x - 4

Sagot :

Aidaninmanproductionidn

Answer:

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

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