puzzle 8

1234
Across
  1. 2. We can find square root of any positive number by ________ methods
  2. 3. A term which cannot be changed and has a fixed value is called ________.
  3. 4. If two sets have same number of elements, they are _____ sets
Down
  1. 1. Algebra means _______
  2. 2. a polynomial with three terms is called __________