Why do square numbers not end in 2, 3, 7 or 8. Why is it so that to identify whether a number is a square or not you look at the last digit

Question

Why do square numbers not end in 2, 3, 7 or 8. Why is it so that to identify whether a number is a square or not you look at the last digit of the number.

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Neala 4 years 2021-07-23T17:29:51+00:00 1 Answers 15 views 0

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  1. Helga
    0
    2021-07-23T17:31:31+00:00
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    Answer:

    I don’t know dear

    I am Korean can you tell in Korean language

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )