Find all the real zeros of the polynomial P(x) = x' + x² - 3x + 1. Its real zeros are x¡ = -1 , X2 = and x3 2 with x1 < x2 < x3 . %3D Note: If the polynomial has only two real zeros, input them at x1 and x2; if the polynomial has only one real zero, input it at x .

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