化简:5(3x2y-xy2) * (xy2+3x2y)
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化简:5(3x2y-xy2)*(xy2+3x2y)化简:5(3x2y-xy2)*(xy2+3x2y)化简:5(3x2y-xy2)*(xy2+3x2y)5(3x^2y-xy^2)(xy^2+3x^2y)
化简:5(3x2y-xy2) * (xy2+3x2y)
化简:5(3x2y-xy2) * (xy2+3x2y)
化简:5(3x2y-xy2) * (xy2+3x2y)
5(3x^2y-xy^2)(xy^2+3x^2y)
=5[(3x^2y-xy^2)(3x^2y+xy^2)]
=5[(3x^2y)^2-(xy^2)^2]
=5(9x^4y^2-x^2y^4)
=45x^4y^2-5x^2y^4
5xy2-【3xy2-(4xy2-2x2y)】+2x2y】+2x2y-xy2 化简,再求值
化简:5(3x2y-xy2) * (xy2+3x2y)
化简 5(3x2y-xy2)- (xy2+3x2y)怎么算啊
-2x2y(-2xy2)2+(2xy)3×( xy2)
3x2y+xy2-[2xy2-4x2y+(x2y-2xy2)]
计算:3xy(x2y-xy2+xy)-xy2(2x2-3xy+2x)因式分解
(x2y)3 × (-xy2)3
(6x2y-xy2-1/2x2y3)/(-3xy)
(5)先化简,再求值:3x2y-[2x2y-(2xy-3x2y)]+3xy2,其中x=3,y=-1/3(5)先化简,再求值:3x2y-[2x2y-(2xy-3x2y)]+3xy2,其中x=3,y=1/3
先化简再求值3x2y(-4xy2)+5xy(-6xy)2其中x=1y=-1/2
3(3x2y-xy2+3)-2(2x2y+xy2-2)化简 一个多项式加上5x2+3x-2的二倍得1-3x2+x,求这3(3x2y-xy2+3)-2(2x2y+xy2-2)化简 一个多项式加上5x2+3x-2的二倍得1-3x2+x,求这个多项式.1.3(3x2y-xy2+3)-2(2x2y+xy2-2)化简
-3x2y+2x2y+3xy2-2xy2
-3x2+2x2y+xy2
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