[tex]b)(m - {n}^{2} )(am - an - 3) = \\ a {m}^{2} - anm - 3m - am{n}^{2} + a {n}^{3} + 3 {n}^{2} [/tex]
[tex]c)(x - y)( {x}^{2} y + x {y}^{2} - xy) = \\ {x}^{3} y + {x}^{2} {y}^{2} - {x}^{2} y - {x}^{2} y - x {y}^{3} + x {y}^{2} = \\ {x}^{3} y + {x}^{2} {y}^{2} - 2 {x}^{2} y - x {y}^{3} + x {y}^{2} [/tex]
Respuesta:
[tex]a)(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]b)(m - {n}^{2} )(am - an - 3) = \\ a {m}^{2} - anm - 3m - am{n}^{2} + a {n}^{3} + 3 {n}^{2} [/tex]
[tex]c)(x - y)( {x}^{2} y + x {y}^{2} - xy) = \\ {x}^{3} y + {x}^{2} {y}^{2} - {x}^{2} y - {x}^{2} y - x {y}^{3} + x {y}^{2} = \\ {x}^{3} y + {x}^{2} {y}^{2} - 2 {x}^{2} y - x {y}^{3} + x {y}^{2} [/tex]