👤

[79x8-261)x5+3x(473-11x42)]x109x21

Răspuns :

[(79x8-261)x5+3x(473-11x42)]x109x21 = [(632-261)x5+3x(473-462)]*  109x21= (371x5+3x11)*109*21= (1855+33) *109*21= 1888*109*21=
=205792 * 21= 4 321 632