Question

Find the least no which must be subtracted from 1989 to make it a perfect square. Also find the square root of the perfect no, so obtained.​

Answer 1

Answer:

please mark as brainliest

Step-by-step explanation:

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.

So root of the perfect square=

√1936 = 44