Question

find the least number that should be subtracted from the following numbers to get a perfect square. a.4401610
b.363636
c.531440
d.2000
e.99999
f.451512




any questions from these you now please answer me ​

Answer 1

We have,
1989 be make perfect square.
We know that,
442=1936<1989
452=2025>1989
Let x be added or subtracted in 1989
Then,
x+442=1989
⇒x+1936=1989
⇒x=1989−1936
⇒x=53
53 is subtracted from 1989 making perfect square.
Hence, this is the answer.