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2 April, 23:42

Solve: x2 - 2x + 1 = 4

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  1. 2 April, 23:43
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    x^2-2x+1=4 subtract 4 from both sides

    x^2-2x-3 factor

    (x-3) (x+1) set equal to zero

    x=3, - 1
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