Question

what would be added to 7912 to make the sum a perfect square

Answer 1

Hey mate !!

Here's the answer !!

The greatest square number nearest to the number 7912 is 7921.

So the required number to be added is:

7912 + x = 7921

=> x = 7921 - 7912

=> x = 9.

Hence 9 must be added to the number 7912 to make the sum a perfect square.

Hope my answer helps !!

Cheers !!

Answer 2

The ans is 9
9 + 7912 = 7921 which is the square of 89