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x3-3x2+2=0

(x³ - x²) - 2x² + 2 = 0x²(x - 1) - 2(x² - 1) = 0x²(x - 1) - 2(x - 1)(x + 1) = 0(x - 1)*(x² - 2x - 2) = 0x1 = 1x² - 2x - 2 = 0D=4+4*2 = 12x2 = (2 - 2√3)/2 = 1 - √3x3 = 1 + √3