Question: Simplification of RootOf

hi...how i can gain result for solve three equations,in which term '' Root of'' dont appear?

thanks

root.mw

restart; Q1 := aa*(y-x)

aa*(y-x)

(1)

Q2 := -ll*x*z+bb*x

-ll*x*z+bb*x

(2)

 

-ll*x*z+bb*x

(3)

Q3 := -cc*z+hh*x*x+kk*y*y

hh*x^2+kk*y^2-cc*z

(4)

SOLL := solve({Q1, Q2, Q3}, {x, y, z})

{x = 0, y = 0, z = 0}, {x = RootOf((hh*ll+kk*ll)*_Z^2-bb*cc), y = RootOf((hh*ll+kk*ll)*_Z^2-bb*cc), z = bb/ll}

(5)

``

 

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