Question

(x^2+xy+y^2)(x^2-xy+y^2)​

Answer 1

Step-by-step explanation:

$( {x}^{2} + xy + {y}^{2} )( {x}^{2} - xy + {y}^{2} )$

$= {x}^{4} -{x}^{3} y + {x}^{2} {y}^{2} + {x}^{3}y-{x}^{2}{y}^{2} \\ +x {y}^{3} + {x}^{2} {y}^{2} - x {y}^{3} + {y}^{4}$

$= {x}^{4} + {x}^{2} {y}^{2} + {y}^{4}$