Find the least number that must be subtracted from 21 2o show the result is a perfect square

Christian Ammer asked May 18, 2023

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Christian Ammer asked May 18, 2023

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19 votes

Answer:

Explanation:

2 × 2 = 4

3× 3 = 9

4 × 4 =16

5 × 5 =25

16 is the only number and closest number to 21 to subtract from

Frank J answered May 22, 2023

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