Question

What must be subtracted from 4562 to get a perfect sqare

Answer 1

if we will do this with divsion method the quotient will be 67 
672 = 4489 
now 4562 - 4489 = 73 so 
73 should be subtracted from 4562 to make it a perfect square  = 4489 = 672

Answer 2

for finding the answer we have to find out the a perfect square no. closer to 4562.
4489 square of 67 is close to 4562 now we'll subtract 4562-4489=73