Language Of Algebra

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Across
  1. 1. Involving the Square and no higher power of unknown value
  2. 4. A branch of maths using letters
  3. 7. a number of quantity
  4. 8. To show products of the factor
  5. 9. An expression of two quantities
  6. 13. Algebratic expansion of powers
  7. 16. Can be distributed over another
Down
  1. 1. A sum of three terms
  2. 2. An increase of one decreases the other
  3. 3. To replace one expression with another
  4. 5. A first order equation involving two variables
  5. 6. An expression of the sum of two or more terms
  6. 7. Not changing or varying
  7. 10. A polynomial with two terms that have been multiplied
  8. 11. Variables which are the same
  9. 12. To resolve into factors
  10. 14. A letter used to represent a number
  11. 15. A variable, function or a combination of
  12. 17. Having a range of possible numbers