Question

Hèllo!Please solve it anyone...
THE FOLLOWING NUMBERS ARE OBVIOUSLY NOT PERFECT SQUARES. GIVE REASONS..
✍1057
✍23453
✍7928
✍222222
✍64000
✍89722
✍222000
✍82004

Answer 1

Number ending with 7,3,8,2 can't be perfect square
Number ending with odd no of 0 can't be perfect square

Answer 2

numbers ending with 7,3,8,2 arent perfect squares because no number when multiplied by itself will give 7,8,3,2. as for the ones ending with 0- 0×0=0 and it isnt divisible by 10 also because 0 is a possible last digit of square root for 0 and 10 only . im sorry but i dont knoe about the noumber ending with 4