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How to solve this equation?

Mathematics
Tutor: None Selected Time limit: 0 Hours

4x^2 - 8x + 4 = 8

Please show steps. Thank you!

Dec 5th, 2016

4(x^2 - 2x +1) = 8

x^2 - 2x + 1 = 2

(x-1)^2 = 2

x - 1 = sqrt(2) or x - 1 = sqrt(2)

x = 1+sqrt(2) or x = 1-sqrt(2)

Oct 11th, 2014

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