n= 3 la puterea 40 : 3 la puterea 37 x (9+3 x 25):42
n=3 la puterea 3 x (9+75):42
n= 27 x 84 : 42
n= 2268:42
n=54
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m=411014-411 x 8 x 125 - 8 x 49 :28
m= 411014 - 3288 x 125 - 392 : 28
m= 411014 - 411000 -14 = 0
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M x N = 54 x 0 = 0
M+ N = 54+0= 54