resolva as expressões
a)4³-[(2.√100+3.2)]=
b)√100-[√49-(6-2.2²=
c)10:{2+[(√16+2³)=
d)(5³-√25):(26-√36=
e)(5³-√25):(26-√36=
f)2.[6¹-(√100+12):11=
g){5.[31-√9.7+23]-√144}:(4-1=
h)√16.{3²[(2³-5)√16+1]-√25}=
Soluções para a tarefa
Resposta:
a)4³-[(2.√100+3.2)]=
4³-[2.10+6]
4³-26
64 - 26
38
b)√100-[√49-(6-2.2²=
c)10:{2+[(√16+2³)=
d)(5³-√25):(26-√36=
e)(5³-√25):(26-√36=
f)2.[6¹-(√100+12):11=
g){5.[31-√9.7+23]-√144}:(4-1=
h)√16.{3²[(2³-5)√16+1]-√25}=
Resposta:
a) 38
b) 1
c) 5/7
d) 6
e) 6
f) 10
g) 55
h) 283
Explicação:
a)4³-[(2.√100+3.2)]=
64 - ( 2 • 10 + 3 • 2)
64 - ( 20 + 6)
64 - 26 = 38
b)√100-[√49-(6-2.2²)=
10 - [ 7 - ( 6 - 2 • 4)
10 - [ 7 - ( 6 - 8)
10 - [ 7 - ( -2)
10 - [ 7 + 2
10 - 9 = 1
c)10:{2+[(√16+2³)=
10: ( 2+[4 + 8]
10: ( 2+ 12)
10: 14 = 10/14=5/7
d)(5³-√25):(26-√36=
( 125 - 5):(26-6)
120:20 = 6
e)(5³-√25):(26-√36=
( 125 - 5):(26-6)
120:20 = 6
f)2.[6¹-(√100+12):11=
2•[6-(10+12):11
2• 6-22:11
12 - 2 = 10
g){5.[31-√9.7+23]-√144}:(4-1)=
{5•[31 -3•7+23] - 12} : (3)
{5•[31-21+23] - 12} : 3
{5• [33] - 12} : 3
{165} : 3 = 55
h)√16.{3²[(2³-5)√16+1]-√25}=
4 • {9[(8-5) 4 + 1] - 5}
4• {9[3+4+1] - 5}
4•{ 9 • 8 - 5}
4 • 72 - 5
288 - 5 = 283