S3 Mathematics, 01 More on Factorisation

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Across
  1. 5. a factor divisible by two or more terms
  2. 10. a set of numbers that can be divided into a certain number
  3. 13. (x - m)(x + m)
  4. 14. must use previous part of same question
  5. 15. common factoring expressions
  6. 16. (x + m)^2
Down
  1. 1. a polynomial with 3 terms
  2. 2. ()
  3. 3. reverse of expansion
  4. 4. result of multiplication
  5. 6. multiply out brackets
  6. 7. a sum of terms
  7. 8. a term without variables
  8. 9. method used to factorise trinomial
  9. 11. number before a variable
  10. 12. a product of a number with possibly variables