Question

If P=x²-yz , Q=y²-x² ,R=z²-xy, Then find PQR

Answer 1

`PQR=( {x}^(2) - yz)( {y}^(2) - {x}^(2) )( {z}^(2) - xy) = \\ = {x}^(2) {y}^(2) {z}^(2) - {x}^(3) {y}^(3) - {x}^(4) {z}^(2) + {x}^(5) y - {y}^(3) {z}^(3) + \\ + x {y}^(4) z + xy {z}^(3) - {x}^(2) {y}^(2) z`

I don't know if it was necessary to open the brackets, but I think you can write it like this:

`PQR=( {x}^(2) - yz)( {y}^(2) - {x}^(2) )( {z}^(2) - xy) \\`