5(x-y)²+20(y-x)
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您好亲亲,5(x-y)²+20(y-x)=5(x²-2xy+y²)+20y-20x=5x²+5y²-10xy+20y-20x
咨询记录 · 回答于2022-11-29
5(x-y)²+20(y-x)
好了嘛
您好亲亲,5(x-y)²+20(y-x)=5(x²-2xy+y²)+20y-20x=5x²+5y²-10xy+20y-20x
亲亲,因为只能手动输入,所以会有点慢噢
因式分解这道题
亲亲,(x-y)²=(x²-2xy+y²)
姐姐我们需要因式分解
好的,马上噢
亲亲,5(x-y)²+20(y-x)=(x-y)(5(x-y)-20)