Question

Factor as the product of two binomials.
x² - 4

Answer 1

• (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)