The answer would be 656.
Extracting the root is the inverse operation of ^2:
656−−−√2×656−−−√2=656−−−√22=656The term can be written as
656−−−√or656−−−√2Like any positive number, the number 656 has two square roots: 656−−−√2
, which is positive and called principal square root of 656, and −
656−−−√2, which is negative.
Together, they are denominated as ± 656−−−√2
.Hope this helps!!
