Zad 1
3x+5x-3x=???
Zad 2
-2y-5y+2y=???
Zad 3
z+z+z-z-z= ???? (chyba najbardziej porąbane zadanie :D)
Zad 4
-2a+b-a-2b+3a = ???
Zad 5
-ab+b²+3ab-2ab
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Zad 1
3x+5x-3x=8x-3x=5x
Zad 2
-2y-5y+2y=-7y+2y=-5y
Zad 3
z+z+z-z-z=3z-2z=z
Zad 4
-2a+b-a-2b+3a = -3a+3a-b=-b
Zad 5
-ab+b²+3ab-2ab=2ab-2ab+b²=b²
licze na naj ;d
1. 3x+5x-3x=5x
(3x się skraca)
2. -2y-5y+2y= -5y
(to samo)
3. z+z+z-z-z=-z
4. -2a+b-a-2b+3a = -b
5. -ab++3ab-2ab= b²