livvymiMelid livvymiMelid

31-07-2016
Mathematics

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help me solve x2 – 4x – 8 = 0

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brittanysu brittanysu

31-07-2016

X^2-4x+2^2= 12, (x-2)^2=12 , x-2= square root 12
Square root 12 = 2square root 3 so x = 2+2square root 3

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