∵x+y=10,xy=7,
∴x2y+xy2=xy(x+y)=7×10=70.
故答案为:70.
如果x+y=10,xy=7,则x2y+xy2=_.
如果x+y=10,xy=7,则x2y+xy2=______.
数学人气:352 ℃时间:2019-12-07 15:18:24
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