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Calculeaza axb, stiind ca: a=50+9:9-45; b=3x(300-55x5)x2+3-(14:7-5x0); c=35x2+45x3

Răspuns :

a=50+1-45=6
b=3×(300-275)×2+3-2=3×25×2+1=75×2+1=151
c=70+135=205
a×b=6×151=906