please please help me?

what is 2sqrt 13 times itself????/ and how did you get it 10 points! please help

dancing_hippogriff2009-08-31T17:13:09Z

(2 sqrt 13) * (2 sqrt 13)
Break it up into parts.
2 * 2 = 4
sqrt 13 * sqrt 13 = 13
Now, put them back together: 4 * 13 = 52

Alternatively, de-simplify 2 sqrt 13
2 sqrt 13 = sqrt (13 * 2 * 2) = sqrt 52
sqrt 52 * sqrt 52 = 52

Jman2009-08-31T17:03:11Z

52. Graphing calculator. Put it in just like you see it. (2sqrt13) x (2sqrt13)