第一项与第三项先合并
9xy(x-y)(x+1)-3y(x-y)(3x+2y)+6y^2*(x-y)(x+1)
=(x-y)(x+1)(9xy+6y^2)-3y(x-y)(3x+2y)
=(x-y)(x+1)(3x+2y)3y-3y(x-y)(3x+2y)
=3y(x-y)(3x+2y)(x+1-1)
=3xy(x-y)(3x+2y)
9xy(x-y)(x+1)-3y(x-y)(3x+2y)+6y的平方(x-y)(x+1),因式分解
9xy(x-y)(x+1)-3y(x-y)(3x+2y)+6y的平方(x-y)(x+1),因式分解
数学人气:367 ℃时间:2019-10-10 08:24:31
优质解答
我来回答
类似推荐
猜你喜欢
- 1the children have been loking forward to this hoilday for momths.帮忙改个一般疑问句!
- 2英语翻译
- 3为什么木炭在空气中燃烧,消耗了空气中的氧气,生成了二氧化碳气体,且木炭燃烧后质量变小了
- 4大理石和石灰石的主要区别
- 51.25×67.875+125×6.7875+1250×0.053375.
- 6英语翻译 那里什么样子
- 7有一冰块其质量为45g,体积是50cm的3次方,则这块冰块的密度是()kg|m的立方.当这块
- 8翻译:His mother looked after him as well as she could.
- 9利用周期函数的定积分特性计算
- 10为什么the dangerous of 中要用dangerous(形容词)而不用danger(名词)?