Question

Factorise - x(x^2 + y^2 - z^2) + y(-x^2 - y^2 + z^2) - z(x^2 + y^2 -z^2)​

Answer 1

Answer:

$(x {}^{3} - y {}^{3} + z {}^{3} + xy {}^{2} - x {}^{2} y - y {}^{2} z + yz {}^{2} - xz {}^{2} - x {}^{2} z \:)$