Question

Calcule as expressões:

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Answer 1

a) [28-3⁴:9+(32:2-6)]-18=
    [28-81:9+(16-6)]-18=
    [28-9+(10)]-18=
    [19+10]-18=
    29-18 = 11

b) 26+{[(26-9+3)-√36:3+3.18]-66}=
   26+{[(30)-6:3+54]-66}=
    26+{[30-2+54]-66}=
    26+{82-66}=
    26+16= 42