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Portia solved the quadratic equation

x^2 - 4x + 1 = 0

by completing the square. In the process, she came up with the equivalent equation (x + r)^2 = s where r and s are constants. What is s?

 Nov 29, 2020
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x^2 -4x +4   = -1 +4

(x-2)^2  = 3

 Nov 29, 2020

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