Wpisz odpowiednie wyrażenie algebraiczne a) 2xy+.....................=3xy+x B)3mn+.......................=3 c)a kwadrat-b kwadrat+................=b kwadrat-a kwadrat D)-pq-q+.....................=-2pq e)2x kwadrat-2x+..................=2x f)x kwadrat-2y kwadrat+............=2xy Prosze szybko!!!!!! DZIEKI
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a) 2xy+xy+x=3xy+x
B)3mn+3-3mn=3
c)a²-b²+(-2a²)+2b².=b ²-a²
D)-pq-q+(-pq)+(-q)=-2pq
e)2x²-2x+(-2x²)+4x=2x
f)x²-2y²+(-x²)+(-2y²)+2xy=2xy