MATH

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Across
  1. 3. The reverse of factorization
  2. 4. a ratio that compares two quantities with different units
  3. 5. are terms that have the same variables and powers
  4. 7. a symbol that does not have a fixed value
Down
  1. 1. a number that is multiplied by a variable in an expression
  2. 2. a fixed value
  3. 3. a combination of terms that are combined by using mathematical operations such as multiplication, addition. subtraction, and division
  4. 6. the relation between two quantities of the same kind