Ch.8 Identities

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Across
  1. 2. Identities speed up the __________________ process.
  2. 5. (x + a)(x + b) __________________x2 + (a + b)x + ab
  3. 6. These identities are useful in computing squares and products of __________________.
Down
  1. 1. Identities also make the process of factorizing __________________ more convenient.
  2. 3. (a + b)(a + b) this product using __________________ law of multiplication.
  3. 4. Identities are algebraic expressions which are valid for all values of the __________________.
  4. 5. An equality which is true for every value of the variable is called an __________________.
  5. 7. They are alternative methods to calculate __________________ of numbers.