Terminologies of algebra

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Across
  1. 2. has _____ terms
  2. 3. 4 in xy+4 is a _____ term
  3. 5. they are added to make an expression
  4. 7. pq+r has three variables
  5. 9. number of terms in xy+p+x+q+y
  6. 12. an expression having three terms
  7. 13. an expression with one or more term
  8. 14. pqr is a trinomial
Down
  1. 1. a,b,c in an expression abc
  2. 4. a+b is a binomial
  3. 6. expression pqr
  4. 8. st+pq
  5. 10. Algebra introduces the concept of _____
  6. 11. Value of variable is fixed