Question

In each of the following find the least number which must be added to make the following a perfect square.
(b) 9991

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Answer 1

Answer:

we need to add 2

Step-by-step explanation:

we need to add 2

Answer 2

Answer:

If we add 9 to it the total will become 10000 and 10000 is square of 100.

So the leat number which should be added is 9.

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