Question

Which number should be added to 1642 to get a perfect square?​

Answer 1

Answer:

Since we know

1600 and 1681 are the square of 20 and 21 respectively

We have 1642 + x = perfect square

There for 1681 is only possible becoz it can be obtained by adding something to 1642 as question needs.. We cannot subtract. To get 1600

Therefore 1681- 1642 = 39 is the required number to get perfect square

Also. 41 GIVES PERFECT SQUARE

Step-by-step explanation:

Answer 2

Answer:

39

Step-by-step explanation:

39 must be added to 1642 and 41 is the square root of the resulting number.the nearest perfect square of 1642 is 1600and 1681 which is square of 40 and 41 respectively.