Faktorkanlah: x^2(b-c)+b^2(c-x)+c^2(x-b)

Faktorkanlah: x^2(b-c)+b^2(c-x)+c^2(x-b) ......................... x^2(y+z)+y^2(z+x)+z^2(x+y)+2xyz ...... x^2(y-z)-y^2(z+x)-z^2(x-y)+2xyz....