If [img]2011q3/ct_egmatqm_egmatqchoose_0381_201121[/img] for all integers x and

游客2025-02-27 40

问题 If

for all integers x and y; then (-5)×2=

选项 A、
B、
C、
D、
E、

答案 B

解析 The equation [(2×-5)-2]/[(2×2)-(-5)]=-12/9=-4/3.

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