QUADRATIC

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Across
  1. 2. solve -2x^2+144=0 using square roots
  2. 5. best method to find x^2-9x+21=0
  3. 7. easy to find vertex
  4. 9. solve x^2+6x-15=0 using complete the square
  5. 10. best method to find x^2+6x-15=0
Down
  1. 1. solve 3x^2-22x+7=0 using factoring
  2. 2. solve x^2-9x+21=0 using quadratic formula
  3. 3. easy to find y-intercept
  4. 4. best method to find -2x^2+144=0
  5. 6. easy to find x-intercept
  6. 8. best method to find 3x^2-22x+7=0