Question

x×(y×y-z×z)+y×(z×z-x×x)+z×(x×x-y×y)=?

Answer 1

blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah

Answer 2

x×(y2-z2)+y×(z2-x2)+z×(x2-y2)
=xy2-xz2+yz2-yx2+zx2-zy2