Question

verify the results :
$x {}^{3 } + y {}^{3} + z {}^{3} - 3xy = \frac{1}{2} (x + y + z)(x - y) {}^{2} + (y - z) {}^{2} + (z - x) {}^{2}$
​

Answer 1

Gfyghggouryifdf jfufhdidigdoufou fouuoudoy