zadanie 13 strona 35 matematyka z plusem 2 zbiór zadań
b)a(b-c)+b(c-a)+(a-b)
c) 4a²b(b-a/2)+2ab(2ab-a)
b)a(b-c)+b(c-a)+(a-b)=ab-ac+bc-ab+a-b=bc-ac+a-b
c) 4a²b(b-a/2)+2ab(2ab-a)=4a²b²-2a³b+4a²b²-2a²b=8a²b²-2a³b-2a²b
b)
a(b-c)+b(c-a)+(a-b) = ab-ac+bc-ab+a-b = a-b-ac+bc
c)
4a²b(b-a/2)+2ab(2ab-a) = 4a²b²-2a³b+4a²b²-2a²b = 8a²b²-2a³b-2a²b
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b)a(b-c)+b(c-a)+(a-b)=ab-ac+bc-ab+a-b=bc-ac+a-b
c) 4a²b(b-a/2)+2ab(2ab-a)=4a²b²-2a³b+4a²b²-2a²b=8a²b²-2a³b-2a²b
b)
a(b-c)+b(c-a)+(a-b) = ab-ac+bc-ab+a-b = a-b-ac+bc
c)
4a²b(b-a/2)+2ab(2ab-a) = 4a²b²-2a³b+4a²b²-2a²b = 8a²b²-2a³b-2a²b