Respuesta :

Step-by-step explanation:

[tex]thank \: you[/tex]

Ver imagen spammingallowed

[tex]\\ \sf\longmapsto (5-4i)(7-3i)[/tex]

[tex]\\ \sf\longmapsto 5(7-3i)-4i(7-3i)[/tex]

[tex]\\ \sf\longmapsto 35-15i-28i+12i^2[/tex]

[tex]\\ \sf\longmapsto 35-43i-12[/tex]

[tex]\\ \sf\longmapsto 23-43i[/tex]

RELAXING NOICE
Relax