It is the digit 2 underneath the radical sign.
1 over 2 times radical 6
5 radical 2
2 radical 13
15 radical 2
2 radical 23
There is no radical to simplify!
The SQRT(18) in radical form is 3*SQRT(2), where SQRT represents the radical symbol.
The square root of 28 in simplified radical form is...2 * Square root of 7
2√2
2√2
2 radical 11 the square root of 44. 44/2 = 22 radical 2 x 22 radical 2 x 2 x 11 Since 2 is under the radical twice you can take it out 2 radical 11
15.556 is a rational number, so there is no sensible radical form.