2. 职称英语
  3. Which two of the following are NOT solutions of(x-5)(x-3)(x-9)(x+9)=0?A、-9B、-5

Which two of the following are NOT solutions of(x-5)(x-3)(x-9)(x+9)=0?A、-9B、-5

游客2024-01-12  5
问题 Which two of the following are NOT solutions of(x-5)(x-3)(x-9)(x+9)=0?
选项 A、-9
B、-5
C、-3
D、3
E、5
答案 B,C
解析 The correct answer is B and C. The solutions are the values of x that make the product of(x-5)(x-9)(x-3)(x+9)equal to 0. Therefore, x can equal 5, 3, 9, or -9, but x cannot equal -5 or -3.
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