Question

find the least number which must be added to 520 to make it a perfect square ​

Answer 1

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find the least number which must be added to 520 to make it a perfect square

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• 9 should be the least number that must be added to 520 to make it a perfect square.

Answer 2

Answer:

Step-by-step explanation:

From above solution, conclude that square root of number lies between 22 and 23.

Thus,  

 

• Therefore the number to be added is