Question

(iii) (x2 – xy) - (y? – yz) - (Z2 – zx)​

Answer 1

Explanation:

$( {x}^{2} - xy) - ( {y}^{2} - yz) - ( {z}^{2} - zx) \\ = {x}^{2} - xy - {y}^{2} + yz- {z}^{2} + zx \\ = {x}^{2} - {y}^{2} + {z}^{2} - xy + yz+ zx$