Respuesta:
[tex](2x - 4)(6 {x}^{2} - 4x + 3) \\ 12 {x}^{3} - 8 {x}^{2} + 6x - 24 {x}^{2} + 16x - 12 \\ \\ 12 {x}^{3} - 32 {x}^{2} + 22x - 12[/tex]
[tex](x - y)( {x}^{2} y + x {y}^{2} - xy) \\ {x}^{3}y + {x}^{2} {y}^{2} - {x}^{2} y - {x}^{2} {y}^{2} - x {y}^{3} + x {y}^{2} \\ \\ {x}^{3} y - {x}^{2} y - xy {}^{3} + xy {}^{2} [/tex]
[tex](m - n {}^{2} )(am - an - 3) \\ \\ am {}^{2} - anm - 3m - amn {}^{2} + a {n}^{3} + 3n {}^{2} [/tex]
[tex](a + b)( {a}^{4} - {a}^{3} b + {a}^{2} {b}^{2} - ab {}^{3} + b {}^{4)} \\ \\ {a}^{5} - a {}^{4} b + {a}^{3} {b}^{2} - a {}^{2} {b}^{3} + a {b}^{4} + {a}^{4} b + {a}^{3} b {}^{2} - a {b}^{4} + {b}^{5} \\ {a}^{5} + 2 {a}^{3} {b}^{2} - {a}^{2} {b}^{3} + {a}^{4} b - ab {}^{4} + b {}^{5} [/tex]
