Let-a-b-c-d-are-positive-real-numbers-If-x-a-b-c-d-1-The-minimum-value-of-x-a-x-b-x-c-x-d-abcd-is-

Question Number 9489 by Joel575 last updated on 10/Dec/16

Let a, b, c, d are positive real numbers

If x = a + b + c + d = 1

The minimum value of

\frac{(x - a) (x - b) (x - c) (x - d)}{a b c d} is \dots