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Factorize 4x3 + 4x2 – 2x – 2 using grouping.

    • (2x2 – 1)(2x + 1)
    • (2x2 – 1)(2x + 2)
    • (4x2 – 1)(x + 1)
    • (4x2 + 1)(2x + 2)