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{[(169:13-2³):5+(7x2³-2x3):5+2³]:19+5}x2³-2⁴x3

Răspuns :

este egala cu {[(13-8):5+(56-6):5+8]:19+5}x8-48=[(1+10+8):19+5]x8-48=
=(1+5)x8-48=48-48=0