Question

Multiplicacion de polinomios ​

Answer 1

Respuesta:

${6x}^{2} - 7xy + {9x}^{2} y - {20y}^{2} + {12xy}^{2} \\ {x}^{2} - xy + {x}^{2} y + xy - {y}^{2} + {xy}^{2} \\ {6a}^{2} + {8a}^{2} b + {8a}^{4} b - {8b}^{2} + {16a}^{2} {b}^{2} \\ {4a}^{4} - {16b}^{2} \\ {9m}^{4} - {4n}^{6}$