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Real roots or none

Exercise and reference answers

Upper category
Real
Lower category
None
Items
  1. Category
    Real
    Item
    D is 1
  2. Category
    Real
    Item
    D is 36
  3. Category
    Real
    Item
    D is 49
  4. Category
    Real
    Item
    D is 0
  5. Category
    None
    Item
    D is -1
  6. Category
    None
    Item
    D is -4
  7. Category
    None
    Item
    D is -9
  8. Category
    None
    Item
    D below 0
Instructions
Send each discriminant to the real roots track or the no real roots track.

Explanation

_Source: syllabus Mathematics, Chapter 4, Quadratic Equations._
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