`sqrt(?)-12=sqrt(1296)`

sqrt(5sqrt(2)-2sqrt(12))=

Simplify: sqrt(-20) + sqrt(-12)

Which is greater sqrt(11)-sqrt(6) or sqrt(17)-sqrt(12) ?

Which is greater sqrt(11)-sqrt(6) or sqrt(17)-sqrt(12) ?

(sqrt(10)+sqrt(11)+sqrt(12))xx(sqrt(10)+sqrt(11)-sqrt(12))xx(sqrt(10)-sqrt(11)+sqrt(12))xx(sqrt(10)-sqrt(11)-sqrt(12))

Find the value of sqrt(12-sqrt(12-sqrt(12-...)))