ajuda , por favor
a) 3 + 2. ((3²- 1) + ( 5¹ - 2²)) + 1=
b) ( 7²- 1) : 3 + 2 x 5=
c)16 : 4 + 6 x 2 -5²=
d) 70 - [ 5 X ( 2²: 4) + 3²]=
e) 5² + 2³ -2 x (3 + 9 )=
f) 6² : 3² + 4 x 10 - 12 =
Soluções para a tarefa
Respondido por
1
A) 3+2.(9-1 + 5-4) +1
3+2.(9)+1
3+18+1
=22
B) (49-1) :3+10
48:3 +10
16+10
=26
C) 4 + 12 -25
16 -25
=-9
D) 70 -[5.(4:4)+9]
70- [5.1 + 9]
70-14
=56
E) 25 +8 -2.(12)
33 -24
=9
F)36:9 + 40 - 12
4+40-12
=32
3+2.(9)+1
3+18+1
=22
B) (49-1) :3+10
48:3 +10
16+10
=26
C) 4 + 12 -25
16 -25
=-9
D) 70 -[5.(4:4)+9]
70- [5.1 + 9]
70-14
=56
E) 25 +8 -2.(12)
33 -24
=9
F)36:9 + 40 - 12
4+40-12
=32
anajuliafrizzo:
muito obrigado
Respondido por
0
a)
= 3 + 2. [(3²- 1) + ( 5¹ - 2²)]+ 1
= 3 + 2.[ (9 - 1) + (5 - 4)] + 1
= 3 + 2.[ 8 + 1] + 1
= 3 + 2.9 + 1
= 3 + 18 + 1
= 21 + 1
= 22
b)
= ( 7²- 1) : 3 + 2 x 5
= (49 - 1) : 3 + 10
= 48: 3 + 10
= 16 + 10
= 26
c)
= 16 : 4 + 6 x 2 -5²
= 4 + 12 - 25
= 16 - 25
= - 9
d)
= 70 - [ 5 X ( 2²: 4) + 3²]
= 70 - [ 5 . (4:4) + 9]
= 70 - [ 5.1 + 9]
= 70 - [ 5 + 9]
= 70 - 14
= 56
e)
= 5² + 2³ -2 x (3 + 9 )
= 25 + 8 - 2. 12
= 25 + 8 - 24
= 25 - 24 + 8
= 1 + 8
= 9
f)
= 6² : 3² + 4 x 10 - 12
= 36: 9 + 40 - 12
= 4 + 40 - 12
= 44 - 12
= 32
= 3 + 2. [(3²- 1) + ( 5¹ - 2²)]+ 1
= 3 + 2.[ (9 - 1) + (5 - 4)] + 1
= 3 + 2.[ 8 + 1] + 1
= 3 + 2.9 + 1
= 3 + 18 + 1
= 21 + 1
= 22
b)
= ( 7²- 1) : 3 + 2 x 5
= (49 - 1) : 3 + 10
= 48: 3 + 10
= 16 + 10
= 26
c)
= 16 : 4 + 6 x 2 -5²
= 4 + 12 - 25
= 16 - 25
= - 9
d)
= 70 - [ 5 X ( 2²: 4) + 3²]
= 70 - [ 5 . (4:4) + 9]
= 70 - [ 5.1 + 9]
= 70 - [ 5 + 9]
= 70 - 14
= 56
e)
= 5² + 2³ -2 x (3 + 9 )
= 25 + 8 - 2. 12
= 25 + 8 - 24
= 25 - 24 + 8
= 1 + 8
= 9
f)
= 6² : 3² + 4 x 10 - 12
= 36: 9 + 40 - 12
= 4 + 40 - 12
= 44 - 12
= 32
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