degrees and leading coefficients

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Across
  1. 2. leading
  2. 5. degree
  3. 7. one
  4. 8. letter
  5. 10. cubic
  6. 11. two
  7. 13. exponent
  8. 14. polynomials
Down
  1. 1. expression
  2. 3. three
  3. 4. no variable
  4. 6. flip
  5. 7. term
  6. 9. shape
  7. 12. power