Question

27xcube_ y cube_ z cube _ 9 xyz hint :a cube +b cube +c cube =3abc

Answer 1

To find answer use formula given below:
${x}^3 - {y}^{3} - {z}^{3} - 3xyz \\ = (x - y - z)( {x}^{2} + {y}^{2} + {z}^{2} + xy - yz + xz)$
Hope that it helps!!!