algebra terms

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Across
  1. 4. a number that, when multiplied by itself n times, results in that number
  2. 6. are the numbers s such that s2=n.
  3. 7. is a symbol for a number we don't know yet
  4. 11. how many times to use the value in a multiplication
  5. 12. a mark or sign that stands for something else
  6. 13. two or more independent equations that are solved together
  7. 16. of one or more variables, constants, and operations
  8. 17. shows a mathematical relationship between expressions
  9. 18. has a second-degree term and no higher terms
  10. 19. part of a whole
  11. 20. consists of one or more variables, constants, and operations
Down
  1. 1. a formula that gives you a solution to the quadratic equation ax2 + bx + c = 0.
  2. 2. numbers, variables, or numbers with variables
  3. 3. a number in front of a variable
  4. 5. number a positive number that has exactly two factors, 1 and itself
  5. 8. a mathematical expression that contains an inequality symbol
  6. 9. a sum or difference of terms
  7. 10. A number on its own
  8. 14. a mathematical statement that contains an equal sign
  9. 15. the numbers ..., -3, -2, -1, 0, 1, 2, ....
  10. 17. a number that divides that number exactly