Question

1) opuść nawaisy

3(2a+b)-3(b-2a)

2(3x-7)-7(-4x+3)

9(8-7a)-8(6a-9)

-3(x-4y)+(2x-10y)

-2(2a-b)+(4a-3b)

5(x+1)-3(x-1)-4(x+2)

8(x-2)-5(2x+2)+3(4x-8)

-6(x+a)-4(x-a)+2(6x-2a)

2) rozwiąż

(3x-y)-(4x-3y+5) x= -2

y= 0,3

-(5x-y)+(6x-4y-7) x=0,2

y= -2

4b+3(b do kwadratu -b+5) b= -0,5

3x do kwadratu +3(x-1)-(x do kwadratu - 2x+8) x= 3/4

Answer 1

6a+3b-3b+6a

6x-14+28x-21

72-63a-48a+72

-3x+12y+2x-10y

-4a+2b+4a-3b

5x+5-3x+3-4x-8

8x-16-10x-10+12x-24

-6x-6a-4x+4a+12x-4a

 

 

Answer 2

6 a + 3 b - 3 b + 6 a

6 x - 14 + 28 x - 21

72 - 63 a - 48 a + 72

-3 x + 12 y + 2 x - 10 y

-4 a + 2 b + 4 a - 3 b

5 x + 5 - 3 x + 3 - 4 x - 8

8 x - 16 - 10 x - 10 + 12 x - 24

- 6 x - 6 a - 4 x + 4 a + 12 x - 4 a