Prove that 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 above inequality holds for all real numbers a, b and c?

Prove that a^4 + b^4 + c^4 is greater or equal to (a^2)(b)(c) + (b^2)(a)(c) + (c^2)(a)(b)?
the way to start it is by trying (a + b + c)^4 is greater than or equal to 0


and then by expanding
Reply:its greater than all of them isn't it??
Reply:Im so dropping out of maths!

gerbera