Question

Find the least number which must be added to 1290 to make it a perfect square.​

(with full solution)

Answer 1

Answer:

6

Step-by-step explanation:

First try to find the square of 1296

while doing so we will get 390 left. The closest square to 390 is 396. Therefore their difference 6 must be added.

36*36=1296

35*35= 1225

37*37=1369

Answer 2

Answer:6

Step-by-step explanation:
1290+6= 1296
√1296 =36