GMAT 考满分题库

- 数学PS -

If x^{2} + x - 6 = 0 and x < 0, which of the following must be equal to 0?

I. x^{2} - 3x + 2

II. x^{2} - 5x + 6

III. x^{2} + 4x + 3

  • AI only
  • BII only
  • CIII only
  • DII and III only
  • EI, II, and III
显示答案
正确答案: C

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