Pascal

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Across
  1. 2. Expression that contains two separate terms.
  2. 3. that represents “n choose r.”
  3. 7. Mathematician known for the triangle of numbers.
  4. 8. of x² in (2 + x)⁴.
  5. 9. The geometric figure formed by Pascal’s pattern.
  6. 10. of x⁴ in (1 + x)⁸.
  7. 11. The process of writing out powers of a binomial.
Down
  1. 1. Way of selecting items where order doesn’t matter.
  2. 4. of x³ in (1 + x)⁵.
  3. 5. Product of all positive integers up to n.
  4. 6. of Pascal’s Triangle that looks the same on both sides.
  5. 8. The number that multiplies a variable in an expression.
  6. 12. horizontal line of numbers in the triangle.