Question

√ 168

Answer 1

=12.96

Answer 2

√ 168 = 12.9614814 ..

Answer 3

Explain More please

Answer 4

\[2\sqrt{42}\]

Answer 5

Most people use their calculators, since square root is extremely hard to calculate. You can try guess & check, but it takes a while to get just the right one. So, the only other method is the algorithm. I'd prefer to give you this website so you can clearly see it, its complicated to explain here.
http://www.homeschoolmath.net/teaching/square-root-algorithm.php

Answer 6

Thanks