Question 442413
The first has two real and two complex solutions.
it can be written as 
(w^2-6)^2-38 = 0
w = -sqrt(6+sqrt(38))
w = +sqrt(6+sqrt(38))
w = -i sqrt(sqrt(38)-6)
w = +i sqrt(sqrt(38)-6)
second
(x+sqrt(2))*(x-7sqrt(2))=0
x^2-6sqrt(2)x-14=0