Prove that the following inequality holds for all real numbers a, b and c.?

a^4 + b^4 + c^4 is greater or equal to (a^2)(b)(c) + (b^2)(a)(c) + (c^2)(a)(b)

Prove that the following inequality holds for all real numbers a, b and c.?
a^4+b^4+c^4=%26gt;(a^2)(b)(c)+(b^2)(a)(b)+(c^...