Math Crossword Puzzle

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Across
  1. 8. A # made by squaring a whole number
  2. 9. whole numbers and their opposites
  3. 12. U-shaped line
  4. 13. A ___________ of a number is a value that, when multiplied by itself, gives the original number.
  5. 14. an expression of more than two algebraic terms
  6. 15. two term polynomials
Down
  1. 1. multiplying that number by itself
  2. 2. a point on the y-axis, through which the slope of the line passes
  3. 3. the middle point of the parabola
  4. 4. a number used to multiply a variable
  5. 5. contain variables that have the same symbol
  6. 6. an polynomial that has three algebraic terms
  7. 7. a number, a variable or a product or quotient of numbers and variables
  8. 10. a polynomial consisting of one term
  9. 11. symbols used to represent an unknown value