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Factor as the product of two binomials.
x² - 4

1 Answer

7 votes

Answer:

  • (x + 2)(x - 2)

-------------------

Use the identity:

  • a² - b² = (a + b)(a - b)

Apply it to the given expression:

  • x² - 4 =
  • x² - 2² =
  • (x + 2)(x - 2)
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