How do you solve using the completing the square method $x^2 - 2x + 1 = 4$ ?

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Answer 1 · 2018-03-05T18:35:05

-1, 3

$x^2 - 2x + 1 = 4$
$(x - 1)^2 = 4$
$(x - 1) = +- 2$
x = 1 + 2 = 3
x = -2 + 1 = -1

How do you solve using the completing the square method x^2 - 2x + 1 = 4 x^2 - 2x + 1 = 4 ?