Question

(20mn+5)(-5+20mn) Ayudaaaaaaaaa​

Answer 1

RESOLVER:

[tex]\left(20mn+5\right)\left(-5+20mn\right)[/tex]

[tex]\left(20mn+5\right)\left(-5+20mn\right)=\left(20mn\right)^2-5^2[/tex]

[tex]=\left(20mn\right)^2-5^2[/tex]

Simplificamos esta expresión  [tex]\left(20mn\right)^2-5^2:400m^2n^2-25[/tex]

[tex]\boxed{=400m^2n^2-25}[/tex]

[tex]BUENA\:\:SUERTE[/tex]