Posted by ianian on .
What is the sum of all possible real values of x that satisfies the equation 25[x(log5 x)]=x^3.

Maths 
Steve,
25[x(log5 x)]=x^3
Well, obviously x=5 is a solution
Also, x=1.077 is a solution, but you can't really solve for it without using exotic functions (Lambert W function).