5-2xy^2-4x^3y+x与5+2x^3y-2xy^2+x的差是多少

因式分解 x-xy+3y-3x 2x+xy-y-4x+5y-6 化简：3x^2-[5xy-(x^y-3xy)+4x^2y-8xy] x^3y(-4y)^2+(-7xy)^2*(-xy)-5xy^3*(-3x)^2 5x^3y*(-3y)^2+(-6xy)^2*(-xy)+xy^3*(-4x^2) 求（3x^+y^-5xy）-【2x^-（-4xy-y^+7x^）】=? 求（3x^+y^-5xy）-【2x^-（-4xy-y^+7x^）】=? x²-y²+5x+3y+4（x+y-2xy)(x+y-z)+(xy-1）² 若x-y-3的绝对值与(xy+2)²互为相反数求5（x-y)-2[xy-(x-y)]-3[2（x-y)-3xy]的值 4xy-[(x²+5xy-y²)-(x²+3xy-2y²)],其中x=2,y=-1求值与化简 已知x-y=3xy,求5x+2xy-5y/x-4xy-y的值 诺x+y=6,xy=4 求(5x-4y-3xy)-(8x-y+2xy) (-2xy+2x+5y)-(3xy+2y-2x)-(x+4y+xy)其中x-y=4xy=-1 若x-y=4,xy=1,则(2x+y-2xy)-(3x+2y+xy)-(4xy+3y-5x)= (-5xy)^2(-xy)^3+(4x^2y-3x)(-x^3y^4)+x^5y^5 因式分解 求过程 x-xy+3y-3x 2x+xy-y-4x+5y-6 因式分解 （3x+2y）-（x-y）² x²-xy+3y-3x 2x²+xy-y²-4x+5y-6 3x平方-5x平方y-{2x平方y+6xy平方-[2xy平方-3x平方y+(3x平方y-4xy平方】} 去括号(4x-3y)-[-(3-x)+(x-y)]-5x 还是去括号4xy²-3x²y-{3x²+xy²-[2xy²-4x²y+(x²y-2xy²)]}