Question

$(x - 2 {)}^{2} + 4x - 12$
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Answer 1

$(x - 2)^{2} + 4x - 12 \\ (x - 2)(x - 2) \\ {x}^{2} - 2x - 2x + 4 \\ {x}^{2} + 4 + 4x - 12 \\ {x}^{2} + 4x - 8$