Question

Zadanie 1

xy² * 2x =
3ty * ⅓ t =
4a² *2ab =
3xt *(-t) =
4yb²*½ =

Zadanie 2

6xy-5xy+4xy-3xy+2xy-xy =
2,5a-a-4a+6,5a-3,5a =
0,3x-0,4x+0,5x-0,6x+0,7x=
696y-969y+69y-96y=
½a²+⅓a²+1/6a²-2a²=

Zadanie 3

2a+3b-c-4a-3b+2c =
3x-2y+3,5x-y+2+0,5y=
xy+3x-y+1-xy-2x+y+1=
x²+2xy-3y²-2x²-y²-x²+2xy=
⅙ t² + ¹/₃k²+¹/₃tk²-k²+½t²-⅙tk²=
u²v²+¼uv-¹/₇u²v²-uv-½ uv+u²v²=

Zadanie 4

2xy +...........= 3xy+x
3mm+..........=3
2x²-2x+...........=2x
a²-b²+............=b²-a²
-pq-q+...........=-2pq
x²-2y²+.......=2xy

Zadanie 5

-(-a)+(-b)=
-(-a)-(-b)=
a+(-(-b))=
a-(-(-b))=
-(-(a-b)=
a-(b -a )=

zadanie 6

Nawiasy w odpowiednich miejscach! (wstawić)
3x-2y+1-x+y+2x-3+1
4m+2n-3+m-n+1=5m+n-4
-2t+u-w+t-1+w=-3t+u+1
-3x²-2x-1-5x+3-7x²-3x=-5x²+x+4

Answer 1

1).xy²×2x=2x²y² 4).x+x
3ty×1/3=t²y mm
4a²×2ab=8a³b ( - 2x²)
3xt×(-t)=-3xt²
4yb²×1/2=2yb²
2).3xy
1,5a
-0,1x
108y
a²
3).-6a+c
6,5x+2,5y+2
x-y+2
-x²+4xy+4y²