Question

resolva as expressões a seguir

a) 3³x(12+56÷8)-7²=
b) 20²-[7³-(89-4²)]=
c) (8²-4)÷15+(3+10)²
d) 60+[2²x(5³÷25)]-12=


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Answer 1

Explicação passo-a-passo:

a)

27(12+7)-49= 27x19-49= 413-49= 464

b)

400-[343-(89-16)]= 400-[343-73]= 400-270= 130

c)

(64-4)÷15+(3²+6x10+10²) = 60÷15+9+60+100=

4+169= 173

d)

60+[4x(125÷25)]-12= 60+[4x5]-12= 60+20-12= 80-12= 68