Question

for example the following in Find the least number that must be added so that the resulting number is a perfect square
1. 7172
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Answer 1

Taking square root of 7172, we find that 116 has been left
We see that 7172 is greater than (84)^2



∴ On adding the required number to 7172, we get (85)^2 i.e., 7225

Required number = 7225 – 7172 = 53


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Answer 2

Answer:

I hope it will help you .

Step-by-step explanation:

i) 511

Taking square root of 511, we find that 27 has been left We see that 511 is greater than (22)2

On adding the required number to 511, we get (23)2 i.e., 529

So, the required number = 529 – 511 = 18

(ii) 7172