因式分解:x3+x2y-xy2-y3(数字都是立方和平方哦)
原式 = xy(x2-xy-xy-y2)=xy(x-y)2 同学你好,如果问题已解决,记得右上角采纳哦~~~您的采纳是对我的肯定~谢谢哦
因式分解,x3+x2y-xy2-y3?
x3+x2y-xy2-y3 =x2(x+y)-y2(x+y)=(x2-y2)(x+y)=(x-y)(x+y)2
【初中数学】分解因式x3-x2y+xy2-y3?
=x²(x-y)+y²(x-y)=(x-y)(x²+y²),5,【初中数学】分解因式x3-x2y+xy2-y3 是X的立方减X平方乘y加X乘y的平方减y的立方 求老师童鞋们帮帮忙~
X3-X2y-xy2+y3 因式分解
=xy(x2-xy-xy-y2)=xy(x2-2xy-y2)=xy(x-y)2 绝对 对! 先提公因式 之后利用完全平方公式
【初中数学】分解因式x3-x2y+xy2-y3 帮帮忙拜托了急啊
答案是什么啊?(x-y)(x2+y2)? x3-y3-xy(x-y)=(x-y)(x2+xy+y2)-xy(x-y)=(x-y)(x2+y2)
请帮解因式分解题:x3一3x2y十3Xy2一y3请求因式分解
(x-y)3=(x-y)(x2-2xy+y2)=x3一3x2y十3Xy2一y3
x三次方+x²y-xy²-y三次方 因式分解
x³+x²y-xy²-y³=x²(x+y)-y²(x+y)=(x+y)(x²-y²)=(x+y)(x+y)(x-y)=(x+y)²(x-y)
因式分解:x3+x2-y3-y2= ??? 求详细的解答过程!
x3-y3=(x-y)(x2+xy+y2)x2-y2=(x-y)(x+y)因此,原式=(x-y)(x2+xy+y2+x+y)
若长方形的周长为28,两边长为x、y,且满足x3+ x2y-xy2-y3=0.试...
因为x3+ x2y-xy2-y3=0,所以(x3+ x2y)-(xy2+y3)=0,x2 (x+y)-y2(x+y)=0,(x+y)(x2-y2)=0,(x+y)(x+y)(x-y)=0,所以(x+y)2(x-y)=0.因为长方形的边长总是正数,即 (x+y)2>0,所以x-y=0,即x=y.而长方形的周长为28,即2(x+y)=28,所以x+y=14,...
将x3-x2y-xy2+y3分组分解?
选D 其它三项都可将其分解,只有D不可以,所以D的分组不恰当。