98 is not a perfect square, so its square root is irrational. That means that
it can never be written exactly on paper with digits. Written as a decimal,
it keeps going forever,and never ends.
The beginning is: 9.89949...
Also, don't forget ...
Every number has two square roots ... one positive and one negative.
The other square root of 98 begins -9.89949... and keeps going forever.