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Solve the equation x^2 - 8x + 5 = 0 by completing the square

x²- 8x + 5 = 0 => (x²- 8x + 16) - 11 = 0 =>(x - 4)² = 11 =>x - 4 = +- sqrt(11) =>x = 4 +- sqrt(11)

Answered by Dom H. • Maths tutor

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