Algebraic expression

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Across
  1. 4. The letters used to represent numbers.
  2. 5. The terms which have different variables with different powers.
  3. 7. The numerical factor of a term .
  4. 8. A polynomial of degree 1.
  5. 10. Any algebraic expression with more than one term.
  6. 11. A polynomial with 3 degree.
  7. 12. An algebraic expression having three terms.
Down
  1. 1. An algebraic expression having one term.
  2. 2. The terms which have the same variables with same powers.
  3. 3. A polynomial with degree 2.
  4. 6. ____________ expression are formed by combing variables and constants using operation of addition,subtraction,multiplication,division.
  5. 9. An algebraic expression having two terms.