Question 632148
I just might add that the two imaginary solutions

{{{ w = "" +- sqrt( 10 - sqrt(102) ) }}}

can be written as

{{{ w = "" +- sqrt(-1*(-10 + sqrt(102)) ) }}}

{{{ w = "" +- i*sqrt(-10 + sqrt(102) ) }}}

{{{ w = "" +- i*sqrt(sqrt(102)-10 ) }}}

Edwin</pre