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X2+2x-8 factorised.

User Shonni
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Answer:


{x}^(2) + 2x - 8 \\ sum = 2 \: and \: product = - 8 \\ factors = 4 \: and \: - 2 \\ = > {x}^(2) + 4x - 2x - 8 \\ = x(x + 4) - 2(x + 4) \\ = (x - 2)(x + 4)

User AndreyNik
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