Mathematics, 27.05.2020 23:00, EMQPWE

What substitution should be used to rewrite x8 – 3x4 + 2 = 0 as a quadratic equation? u = x2 u = x4 u = x8 u = x16

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What substitution should be used to rewrite x8 – 3x4 + 2 = 0 as a quadratic equation? u = x2 u = x4...