3xy(x^2y-xy^2+xy)-xy^2(2x^2-6xy+2x)过程
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3xy(x^2y-xy^2+xy)-xy^2(2x^2-6xy+2x)过程
3xy(x^2y-xy^2+xy)-xy^2(2x^2-6xy+2x)
过程
3xy(x^2y-xy^2+xy)-xy^2(2x^2-6xy+2x)过程
3xy(x^2y-xy^2+xy)-xy^2(2x^2-6xy+2x)
=3xy(x^2y-xy^2+xy)-xy^2(2x^2-6xy+2x)
=3x^3y^2-3x^2y^3+3x^2y^2-2x^3y^2+6x^2y^3-2x^2y^2
=x^3y^2+3x^2y^3+x^2y^2
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x^3y^2+3x^2y^3+x^2y^2
3xy(x^2y-xy^2+xy)-xy^2(2x^2-6xy+2x)
=3x^3y^2-3x^2y^3+3x^2y^2-2x^3y^2+6x^2y^3-2x^2y^2
=x^3y^2+3x^2y^3+x^2y^2
2x²y-3(2xy-xy)-xy
(-3xy+2xy)-(4xy+xy)
xy-2{xy-[3x^2y-(4xy^2+0.5xy)]+4x^2y}+6xy^2
(X-3xy+4xy-y)-[-2x-2(xy-3/2xy)-y]+6xy的过程
3xy(x^2y-xy^2+xy)-xy^2(2x^2-6xy+2x)过程
计算:3xy(x²y-xy²+xy)-xy²(2x-xy+2x)
【x(xy-xy)-y(x-xy)】÷3xy
x^2-xy/xy-y^2约分
3xy(x^2-xy^2+xy)-xy^2(2x^2-xy+2x)
x^2-xy-6y^2+3xy+y+2
计算:3xy[2xy-x(y-2)+x]
计算3xy[2xy-x(y-2)+x-1]
(-3x^y+2xy)-( )=4x^+xy
化简:3x^2-[5xy-(x^y-3xy)+4x^2y-8xy]
(x^2+2xy+y^2-4xy)*(x^2-2xy+y^2+4xy)
3xy-3xy-xy+2yx
3xy-4xy-(-2xy)
3xy-4xy-(-2xy)