Question 752745
-x^3 + x^2 -3x + 3 = 0
x^3 - x^2 +3x - 3 = 0
(x^3 - x^2) + (3x - 3) = 0
x^2(x-1) + 3(x-1) = 0
(x-1)(x^2+3) = 0
x = {1, +-sqrt(-3)}
x = {1, isqrt(3), -isqrt(3) }
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Answer: D