Quadratic Equations

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Across
  1. 3. What is a plane curve which is mirror-symmetrical and is approximately U-shaped?
  2. 5. Four 8²
  3. 6. What is the 2 real solution?
  4. 8. √121
  5. 9. What determines the nature of roots?
Down
  1. 1. It is an alphabet or term that represents an unknown value.
  2. 2. The values of variables satisfying the given quadratic equation.
  3. 4. 10²
  4. 7. ³√343
  5. 10. What is³√216?