alwrn16
alwrn16
12-05-2020
Mathematics
contestada
Solve: x2 − 2x + 1 = 4
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saya
saya
12-05-2020
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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