Respuesta :

Answer:

[tex] {x}^{2} - 9x + 20[/tex]

Step-by-step explanation:

[tex](x - 5)(x - 4)[/tex]

[tex]x(x - 4) - 5( x - 4)[/tex]

[tex] {x}^{2} - 4x - 5x + 20[/tex]

[tex] {x}^{2} - 9x + 20[/tex]