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b) 3by-6b=3b(y-2)
c) -8xy+8x=8x(-y+1)
d) 10a²-2ab=2a(5a-b)
e) xy-x²y=xy(1-x)
b) =3b(y-2)
c) =8x(-y+1)
d) =2a(5a-b)
e) =xy(1-x)
a) 5x²-15x=5x(x-3) należy wyłączyć przed nawias 5
b) 3by-6b= b(3y-6)=3b(y-2)
c) -8xy+8x=8(-xy+x)=8x(-y+1)
d) 10a²-2ab=2a(5a-b)
e) xy-x²y=xy(1-x)