Question

find the least no which must be added to 8902 so that the sum becomes perfect square .explain it step by step

Answer 1

90×90=8100
94×94=8836
95×95=9025
Check which is nearest to the given number
9025 is nearest to 8902
Find the difference
9025-8902=123
Therefore
If we add 123 to 8902 become perfect square

Answer 2

123 is the right answer