2)-xy2(x+y)3+x(x+y)2的公因式是________.
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2)-xy2(x+y)3+x(x+y)2的公因式是________.2)-xy2(x+y)3+x(x+y)2的公因式是________.2)-xy2(x+y)3+x(x+y)2的公因式是_______
2)-xy2(x+y)3+x(x+y)2的公因式是________.
2)-xy2(x+y)3+x(x+y)2的公因式是________.
2)-xy2(x+y)3+x(x+y)2的公因式是________.
x(x+y)^2
x+y
x(x+y)(x+y)
x(x+y)2
2x(x+y)
计算题:(-1/3xy2)[xy(2x-y)+xy2],
xy2-2xy-3x-y2-2y-1因式分解.
2)-xy2(x+y)3+x(x+y)2的公因式是________.
(-xy2)∧2(x+2x∧2y)=
C3x2y-2xy2)-(xy2-2x2y),其中x=-1,y=2
先化简再求值:-2y3+(3xy2-x2y)-2(xy2-y3),其中|2x-2|+(y+1)2=0.
(3x2y-2xy2)-(xy2-2x2y),其中x=-1,y=2.
先化简,再求值:3x2y2-[5xy2-(4xy2-3)+2x2y2],其中x=-3,y=2.
2xy2次方-2x2次方y其中y-x=3xy=6/1
已知:(x+2)2+|y+1|=0,求5xy2-{2x2y-[3xy2-(4xy2-2x2y)]}的值
已知x>y,试比较x3-x2y+xy2与x2y-xy2+y3的大小!题中的2、3均为x、y 的2、3次方!急
2x3次方+3x2次方y-xy2次方-3x2次方y+xy2次方+y2次方其中x=1,y=-2
已知x,y∈R+,且x+2y=1,则xy2最大值.
2x^2y+{2xy-[3x^2y-2(-3xy2+2xy)]-4xy^2}
已知x+y=8,xy=12,求(1)x2y+xy2(2)x2-xy+y2(3)x-y
一题因式分解之分组,xy2-2xy-3x-y2-2y-1.
若x-y=3,xy=-2,则xy2-x2y的值是
若x-1的绝对值+(y+3)2=0,求1-xy-xy2的值.