SOLUTION: z^4 -11z^2 +30=0

Algebra ->  Algebra  -> Equations -> SOLUTION: z^4 -11z^2 +30=0      Log On

Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!
Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

   

Question 32542: z^4 -11z^2 +30=0
Answer by mukhopadhyay(490) About Me  (Show Source):
You can put this solution on YOUR website!
z^4 -11z^2 +30=0
=> (z^2-6)(z^2-5)=0
=> z=sqrt(6) or z=-sqrt(6) or z=sqrt(5) or z=-sqrt(5)