Mathematics

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Across
  1. 3. are separated by addition and subtraction
  2. 5. the number inside the square root symbol
  3. 8. number remains with a fixed value
  4. 9. combination of numbers and variables
Down
  1. 1. number multiplied by a variable
  2. 2. and variables must be the same for all similar terms
  3. 4. terms that have exactly the same variables and exponent
  4. 6. the other term to describe the exponent
  5. 7. the symbol to represent the square root