Răspuns :
a) x²y-xy²=xy(x-y);
b) x²y+xy²-2xy=xy(x+y-2);
c) 4a²b³+8a³b²=4a²b²(b+2a).
b) x²y+xy²-2xy=xy(x+y-2);
c) 4a²b³+8a³b²=4a²b²(b+2a).
a) x²y-xy²=xy (x-y)
b) x²y+xy²-2xy=xy (x+y-2)
c) 4a²b³+8a³b²=4a^2 b^2(b+2a)