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e urgent
1. N=10^120 - 120
aflati suma cifrelor
2. {[(7 x 3 - 5) + 3 x 4 ] : 2^5 +5} x 10 - [(4 + 3^2) x 5 - 60
mai mult vrea exercitiul 2
primul nu e obligatoriu va rog mult


Răspuns :

2. {[(7x3-5)+3x4]:2^5+5}x10-[(4+3^2)x5-60]=
{[(21-5)+12]:32+5}x10-[(4+9)x5-60]=
[(16+12):32+5]x10-(13x5-60)=
(32:32+5)x10-(65-60)=
(1+5)x10-5=
6x10-5
60-5=55