👤

13 { 223-[ (x+16)(x+18)+11] }-46=500
Avem nevoie de rezolvare si explicatie,va rog...
Dam coroana!!!


Răspuns :

13{223-[(x+16)x(x+18)+11]}=500+46=546
{223-[(x+16)x(x+18)+11]}=546:13=42
223-(x+16)x(x+18)=42-11=31
(x+16)(x+18)=223-31=192

192=12x16
 nu cred ca are rezolvare