Mathematics Is The World's Best Game

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Across
  1. 3. i²,i³,i⁴
  2. 5. 10/2i÷i/i
  3. 9. Z
  4. 10. R
  5. 15. bi
  6. 16. a+bi and a-bi
  7. 18. N
  8. 20. b²-4ac square rooted
  9. 21. a+bi
  10. 24. -9 square root
  11. 25. x²=n
Down
  1. 1. Factoring equal to 0
  2. 2. x=-b±√b²-4ac/2a
  3. 4. v:(4,-8)
  4. 6. I=-1
  5. 7. II
  6. 8. f(x)=x²-8x+15
  7. 11. multiply both the numerator and denominator by the conjugate
  8. 12. Perfect squares are an example of what
  9. 13. The denominator
  10. 14. 2solutions,1solution,nosolution
  11. 17. x={_,_}
  12. 19. S:(3,5)
  13. 22. Q
  14. 23. W