Question: how to solve this fourth degree equation

March 08 2011 Lonely 390
Maple
0

how to solve

-x^8*a^4+48*z^4+48*x^7*a+8*z*x^6*a-1 = 0


for a

i tried

 

solve(-x^8*a^4+48*z^4+48*x^7*a+8*z*x^6*a-1 = 0, a)

 

and got

 

RootOf(1-48*z^4+(-48*x^5-8*z*x^4)*_Z+_Z^4, label = _L4)/x^2

 

thank you

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