Question 342033
w^4-14w^2-2=0
{{{w = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
w^2=(14+-sqrt[-14^2-4*1*-2])/2*1
w^2=(14+-sqrt[196+8])/2
w^2=(14+-sqrt204)/2
w^2=(14+-14.28)/2
w^2=(14+14.28)/2
w^2=28.28/2
w^2=14.14
w=sqrt14.14
w=3.76 ans.
w^2=(14-14.28)/2
w^2=-.28/2
w^2=-.14
w=sqrt.14
w=.374i ans.