" Find the value of "x" in the equation "|[1,4,20],[1,-2,5],[1,2x,5x^(2)]|=0

The roots of the equation |(1,4,20),(1,-2,5),(1,2x,5x^(2))| = 0 are

The roots of the equation |(1,4,20),(1,-2,5),(1,2x,5x^(2))|=0 are -

Determine the roots of the equation |(1,4,20),(1,-2,5),(1,2x,5x^(2))|=0.

The solution set of the equation |{:(1,4,20),(1,-2,5),(1,2x,5x^(2)):}|=0 is

The solution set of the equation |{:(1,4,20),(1,-2,5),(1,2x,5x^(2)):}|=0 is

Without expanding, the determinant, find the two values of x, satisfying. |(1,4,20),(1,-2,5),(1,2x,5x^2)|=0