Question

what is double roots? please explain to me.

Answer 1

x=4 Double roots

what does it mean?

Answer 2

I am not positive on this but I think double roots are where you take a root of a root like \[\sqrt[3]{\sqrt{3}}\]

Answer 3

no - i think its where you have a root of multiplicity 2

for example
(x - 4)^2 = 0
(x - 4)(x - 4) = 0

x = 4 double roots

Answer 4

ya thats it i think:)