x 3 3x 2 5x 6 0, x 3 6x 2 11x 6 0, x 3 3x 2-2x 1 0, x 3-3x-2 0, x 3 - 6x - 9 0, x 4-3x 3-6x 2+3x+1 0, x 3-3x 2+1 0, x 3-6x 2+9x-4 0, x 3-5x 2-4x+20 0, 3x 2-x-1 0, x3 - 5x2 + 6x 0, x3-3x2-6x+8 0, x 3+2x 2-5x-6 0, x 3-3x 2+6x-8, x 3-3x-1 0, x 4 3x 3-2 4x 2+5x, x 3-7x+6 0, 3x2-6x+2 0, x 2-3x+5
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