If roots of equation `8x^3-14x^2 + 7x-1=0` are in geometric progression, then toots are

If the roots of the equation x^(3) - 7x^(2) + 14x - 8 = 0 are in geometric progression, then the difference between the largest and the smallest roots is

If the roots of the equation x^(3) - 7x^(2) + 14x - 8 = 0 are in geometric progression, then the difference between the largest and the smallest roots is

If the roots of the equation x^3 +3px^2 + 3qx -8=0 are in a geometric progression , then (q^3)/( p^3) =

If the roots of the equation x^3 +3px^2 + 3qx -8=0 are in a geometric progression , then (q^3)/( p^3) =

If the roots of the equation x^(3)+3px^(2)+3qx-8=0 are in a Geometric progression then (q^(3))/(p^(3))=

The roots of the equation x^(3)-14x^(2)+56x-64=0 are in progression.

If the roots of the equation 7x^(3)-4x^(2)+k=0 are in arithmatic progression then find the value of k