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Discriminant of Quadratic Equation

Discriminant of Quadratic Equation (Question)

Determine if the following quadratic equation has two distinct roots.

  1. x2 – 3x – 1
  2. 4x2 + 1
  3. x2 + 2x + 1

 

Guide:
If b2-4ac is

<0, no real roots

=0, two equal roots

>0, two distinct roots

Discriminant of Quadratic Equation (Answer)

  1. Yes
  2. No
  3. No

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