Question

01. resolva as expressões

a) 5² + 9 – [(+20) : (–4) + 3]


b) 64 : ( + 2 ) + (– 3)² . (–3)


c) 25 . ( – 2 ) + (4)² : (–2)


d) 3² + 16 – 2 { 3 – [(+10) : (–2) + 5 ] }​

Answer 1

Resposta:

a) 36. c) -58.

b) 5. d) 19.

Explicação passo-a-passo:

a) 5²+9-[(+20):(-4)+3]=

25+9-[-5+3]=

25+9-[-2]=

25+9+2=

34+2= 36

b) 64:(+2)+(-3)².(-3)=

+32+(+9).(-3)=

+32+(-27)=

+32-27= 5

c) 25.(-2)+(4)²:(-2)=

-50+16:(-2)=

-50-8= -58

d) 3²+16-2{3-[(+10):(-2)+5]}=

9+16-2{3-[-5+5]}=

25-2{3-0}=

25-2.3=

25-6= 19