" If "z=10," find the value of "z^(3)-3(z-10)

Find the value of z^3-3(z-10) for z=10

If z= 5 , find the value of z^3 - 3(z-5 )

If z^(2)+(1)/(z^(2))=14, find the value of z^(3)+(1)/(z^(3))

If x+y+z=6 and xy+zx+zy=10 then find the value of x^(3)+y^(3)+z^(3)-3xyz .

If z = -5 + 3i , find the value of (z^(4)+9z^(3)+26z^(2)-14z + 8) .

If z_(1),z_(2)andz_(3) are complex numbers such that |z_(1)|=|z_(2)|=|z_(3)|=|z_(1)+z_(2)+z_(3)|=1 , find the value of |1/z_(1)+1/z_(2)+1/z_(3)| .

If 2z_(1)/3z_(2) is a purely imaginary number,then find the value of |(z_(1)-z_(2))/(z_(1)+z_(2))|