Math
posted by Anonymous
Find all possible rational roots using the rational root theorem.
x^4  3x^2 + 12 = 0
Plus/minus 1, 2, 3, 4, 6, 12?

Reiny
It is a 4th degree equation, so at most you could have 4 roots
How can you possible get 6 of them ? 
Anonymous
These are just possible rational roots, not the actual ones.
All I did was p/q. 
Reiny
The question was to "find all possible roots"
so you would try
f(1), f(1) , f(2) ...., f(±12)
so you must try all of these
unfortunately, none are equal to zero, so you have no rational roots.
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