annabutcher2017 annabutcher2017

11-07-2017
Mathematics

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whats the best way to solve x2 - 4x = 8

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matthewcooke23 matthewcooke23

11-07-2017

minus the 8
so x^2 - 4x - 8 = 0
then use quadratic formula
so x = 2 plus or minus root 2

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