Question

1) Reduza os termos semelhantes nas seguintes expressões algébricas:
a) 6x + (2x – 4) – 2 e) 4x – 3 + (2x + 1)
b) 7y – 8 – (5y – 3) f) (x + y) – (x + 2y)
c) 4x – (– 3x + 9 – 2x) g) (3x – 2y) + (7x + y)
d) 3x – (– 2x + 5) – 8x + 9 h) – (8a + 4) – (3a + 2)
e)
2) Reduza os termos semelhantes nas seguintes expressões algébricas?
a) 5a + (3a – 2) – (10a – 8) d) (m + 2n) – (r – 2n) – (n + r) ____________________________________________________________________________ b) 6x + (5x – 7) – (20 + 3x) e) –(6y + 4x) + (3y – 4x) – (–2x + 3y) ____________________________________________________________________________ c) ( x + y + z) + x – (3y + z)
_____________________________________________________________________ 3) Reduza os termos semelhantes nas seguintes expressões algébricas:
a) 6x2 – [ 4x2 + (3x – 5) + x]
b) 3x + {2y – [5x – (y + x)]}
c) –3x + [x2 – (4x2 – x) + 5x]
d) xy – [2x + (3xy – 4x) + 7x]
e) 8a – [(a + 2m) – (3a – 3m)]
f) a – (b – c) + [2a + (3b + c)]

Answer 1

a) 6x + (2x – 4) – 2

6x+2x-4-2

8x-6

b) 7y – 8 – (5y – 3)

7y-8-5y+3

7y-5y-8+3

2y-5

c) 4x – (– 3x + 9 – 2x)

4x+3x-9+2x

4x+3x+2x-9

9x-9

d) 3x – (– 2x + 5) – 8x + 9

3x+2x-5-8x+9

3x+2x-8x-5+9

-3x+4

e) 4x – 3 + (2x + 1)

4x-3+2x+1

4x+2x-3+1

6x-2

f) (x + y) – (x + 2y)

x+y-x-2y

x-x+y-2y

-y

g) (3x – 2y) + (7x + y)

3x-2y+7x+y

3x+7x-2y+y

10x-y

h) – (8a + 4) – (3a + 2)

-8a-4-3a-2

-8a-3a-4-2

-11a-6

2) Reduza os termos semelhantes nas seguintes expressões algébricas?

a) 5a + (3a – 2) – (10a – 8)

5a+3a-2-10a+8

5a+3a-10a-2+8

-2a+6

b) 6x + (5x – 7) – (20 + 3x)

6x+5x-7-20-3x

6x+5x-3x-7-20

8x-27

c) ( x + y + z) + x – (3y + z)

x+y+z+x-3y-z

x+x+y-3y+z-z

2x-2y

d) (m + 2n) – (r – 2n) – (n + r)

m+2n-r+2n-n-r

m+2n+2n-n-r-r

m+3n-2r

e) –(6y + 4x) + (3y – 4x) – (–2x + 3y)

-6y-4x+3y+4x+2x-3y

-4x+4x+2x-6y+3y-3y

2x-6y

3) Reduza os termos semelhantes nas seguintes expressões algébricas:

a) 6x2 – [ 4x2 + (3x – 5) + x]

6x2 - [ 4x2 + 3x - 5 + x ]

6x2 - [8 + 3x - 5 + x ]

6x2 - [3 + 4x]

12 - 3 - 4x

9 - 4x

b) 3x + {2y – [5x – (y + x)]}

3x + {2y - [5x - y - x ]}

3x + {2y - [4x - y]}

3x + {2y - 4x + y}

3x + 2y - 4x + y

-x + 3y

c) –3x + [2x – (4x2 – x) + 5x]

-3x + [2x - (8 - x) + 5x]

-3x + [2x - 8 + x + 5x]

-3x + 8x - 8

5x - 8

d) xy – [2x + (3xy – 4x) + 7x]

xy - [2x + 3xy - 4x + 7x]

xy - [5x + 3xy]

xy - 5x - 3xy

-2xy - 5

e) 8a – [(a + 2m) – (3a – 3m)]

8a - [a + 2m - 3a + 3m]

8a - [-2a + 5m]

8a + 2a - 5m

10a - 5m

f) a – (b – c) + [2a + (3b + c)]

a - b + c + [2a + 3b + c]

a - b + c + 2a + 3b +c

a +2b + 2c

obs: se vc puder me dar como melhor resposta eu agradeço, pq assim, deu trabalho  kkskk