October 2020 0 82 Report
simplifique as expressoes  (-2) (-4)x(-3)-(-2)x(-2),       b -{-6+[-4-(3+5-6)+3]-2}   c,{-8:[-2-(-5+3)]+4}   ,d-   (-8):(-4)x(-2):(-1)                   ,e-  {-10+[-8-(+4):(-1)]x(-2)}
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