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12-58.
  1. Factor the quadratics below using any method. Homework Help ✎

    1. x2 − 81

    2. x2 + 12x + 36

    3. 4x2 − 4x − 3

    4. 16x2 − 25

You can use a generic rectangle or diamond to factor.

(x + 9)(x − 9)

(x + 6)²

(2x + 1)(2x - 3)

(4x - 5)(4x + 5)