dreweryne
dreweryne
05-11-2021
Mathematics
contestada
(x+2) (x-2)=? (n+m) (n-m)=?
(r+9) ( r-9)=?
Respuesta :
17982
17982
05-11-2021
Answer:
(x+2) (x-2)=[tex]x^{2}[/tex]-4
(n+m) (n-m)=[tex]n^{2} -m^{2}[/tex]
(r+9) ( r-9)=[tex]r^{2}[/tex]-81
Step-by-step explanation:
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