Respuesta :

Answer:

[tex]\huge\boxed{\sf xy-5x+4y-20}[/tex]

Step-by-step explanation:

[tex]\sf (x+4)(y-5)\\\\Resolving \ Parenthesis\\\\= x(y-5)+4(y-5)\\\\= xy-5x+4y-20\\\\\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807