Multiple Choice Question (MCQ)

An integer is subtracted from its square. The result could be which of the following

  1. ×

    A negative integer.

  2. ×

    An odd integer.

  3. ×

    The product of two consecutive even integers

  4. ×

    The product of two consecutive odd integers.

  5. The product of two consecutive integers.

Collected in the board: Square of numbers

Steven Zheng posted 16 hours ago

Answer

  1. Suppose that the integer is n. The result of subtracting n from its square is

    n^2 − n = n(n − 1)

    which is the product of two consecutive integers, so answer E is correct.


Steven Zheng posted 15 hours ago

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