Question

復數(shù)(2x²＋5x＋2)＋(x²＋x－2)i為虛數(shù)，則實數(shù)x滿足

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A．

x＝－

B．

x＝－2或－

C．

x≠－2

D．

x≠1且x≠－2

Answer 1

答案：D