Question

HEEEEELLLLLLPPPPPPP!!!

simplifique as expressões numéricas

5 (2a + 4)

-8m - (n + 8) + 21

3x + (x -2) - (2x + 6y + 10)

(x - y + 4) - (2x + 6y + 10)

- (-13y + 32) - (-y + 3)

(a + 7b) - (20 + b) - (11a -8b)

10ab - [ 30b - (ab + 2 ab - 5 ab) - 8ab]

2xy + [ -5xy + 2xy - (xy + 4xy 2xy) -8xy]

1,2 ax - (- 0,6 ax + 3,4ax - 2,9 ax) - (7,3 ax - (0,8 ax)

8x - 3y + 15x + 22y

a + b - 14a - 16b

-23c + 42d - 22d + 11c

x2 - ( 2 x2 - 32 xy

-13 + mn - 3m + 8m - 5mn - 10m + 26

Answer 1

A) 10a+20
B) -8m-n-8+21
-8m-n+13
C) 3x+x-2-2x-6y-10
3x+x-2x-6y-2-10
2x-6y-12
D) x-y+4-2x-6y-10
x-2x-y-6y+4-10
-x-7y-6
E) 13y+32+y-3
13y+y+32-3
14y+29
F) a+7b-20-b-11a+8b
a-11a+7b-b+8b-20
-10a+14b-20
G) 10ab-[30b-(-2ab)-8ab]
10ab-[30b+2ab-8ab]
10ab-30b-2ab+8ab
10ab-2ab+8ab-30b
16ab-30b
H) 2xy-5xy+2xy-xy-4xy (aqui n tem sinal então vou considerar vezes) ×2xy-8xy
2xy-5xy+2xy-xy-8x^2y^2-8xy
-2xy-8xy-8x^2y^2
-10xy-8x^2y^2
( vou parar aqui e vc continua..)

Answer 2

A) 10a+20

B) -8m-n-8+21

-8m-n+13

C) 3x+x-2-2x-6y-10

3x+x-2x-6y-2-10

2x-6y-12

D) x-y+4-2x-6y-10

x-2x-y-6y+4-10

-x-7y-6

E) 13y+32+y-3

13y+y+32-3

14y+29

F) a+7b-20-b-11a+8b

a-11a+7b-b+8b-20

-10a+14b-20

G) 10ab-[30b-(-2ab)-8ab]

10ab-[30b+2ab-8ab]

10ab-30b-2ab+8ab

10ab-2ab+8ab-30b

16ab-30b

H) 2xy-5xy+2xy-xy-4xy ×2xy-8xy

2xy-5xy+2xy-xy-8x^2y^2-8xy

-2xy-8xy-8x^2y^2

-10xy-8x^2y^2