A part of the parabola y = a (x + 1) 2 + 2 is shown in the figure. The coordinates of the intersection of the parabola on the right side of the Y-axis and the x-axis are () A. （12，0）B. （1，0）C. （2，0）D. （3，0）

A part of the parabola y = a (x + 1) 2 + 2 is shown in the figure. The coordinates of the intersection of the parabola on the right side of the Y-axis and the x-axis are () A. （12，0）B. （1，0）C. （2，0）D. （3，0）

Because the axis of symmetry of the parabola y = a (x + 1) 2 + 2 is x = - 1, the intersection of the parabola and X-axis (- 3, 0), according to the symmetry, the intersection of the parabola and X-axis (1, 0), so choose B

The operation of fraction x + 1 + 1 / x x ^ 2-1 / X

(x^2-1/x) / (x+1+1/x)
=(x ^ 3-1) / (x ^ 2 + X + 1)
= x-1