Radical Crossword Puzzle

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Across
  1. 2. what we refer to the radicand and radical sign together
  2. 5. what the real number b is called
  3. 7. "a technique used to help remember the steps required to multiply two binomials."
  4. 8. a system of numbers based on adding multiples of i to real numbers
  5. 10. the form that contains sets of real and imaginary numbers
  6. 12. defined as i=√-1, where i^2= -1
  7. 14. the number under the radical sign
  8. 15. what the real number a is called
  9. 18. "a function that maps the set of nonnegative real numbers onto itself"
  10. 19. "when squared, gives a negative result"
  11. 20. a real number that cannot be written as a simple fraction
Down
  1. 1. the number that the index is above
  2. 3. the product of two nth roots is the nth root of the product of the radicands
  3. 4. "written as n√a , where n is a positive integer greater than or equal to 2"
  4. 6. tells us how many times to use the number in multiplication
  5. 9. "numbers which include both rational and irrational numbers"
  6. 11. if "a" is a nonnegative real number, the nonnegative number "b" such that b^2=a, denoted by b=√a
  7. 13. expressions with exponents that are rational numbers
  8. 16. the symbol that we use to denote the principal square root
  9. 17. the opposite pair of either a+bi or a-bi