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16 March, 15:16

Factor completely 2x^2 - 2x - 40. 2 (x - 5) (x 4) (2x - 10) (x 4) (x - 5) (2x 8) 2 (x - 4) (x 5)

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  1. 16 March, 15:32
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    2x^2 - 2x - 40 = 2x^2 - 10x + 8x - 40 = 2x (x - 5) + 8 (x - 5)

    = (x-5) (2x+8) = 2 (x-5) (x+4)
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