X^2+4XY+3Y X^2+4XY+3Y 分解因式
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X^2+4XY+3Y X^2+4XY+3Y 分解因式
X^2+4XY+3Y X^2+4XY+3Y 分解因式
X^2+4XY+3Y X^2+4XY+3Y 分解因式
X^2+4XY+3Y 题目是这个吗
要是这样 就无法分解
X^2+4XY+3Y ^2 我想应该是这样的吧
分解后为:(x+y)(x+3y)
X^2+4XY+3Y
=(x+y)(x+3y)
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
(-3x^y+2xy)-( )=4x^+xy
化简:3x^2-[5xy-(x^y-3xy)+4x^2y-8xy]
因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y)
x^3y(-4y)^2+(-7xy)^2*(-xy)-5xy^3*(-3x)^2
5x^3y*(-3y)^2+(-6xy)^2*(-xy)+xy^3*(-4x^2)
3(x^2y+xy)-4(xy-2x^2y)-(-xy)
当x-y=2xy时,求4x-3xy-4y/xy
XY(XY+3)+(XY+4)+4(X+Y+1)-(X+Y+2)
3(x平方y+xy)-4(xy-2x平方y)-(xy)
因式分解 x-xy+3y-3x 2x+xy-y-4x+5y-6
一道数学题(3x^2y-4xy^2)/xy
5x^2y-3xy^2+4xy-14xy^2+4xy-2x^2y(化简)
计算:5xy^2-[3xy^2-(4xy^2-2x^2y)]+2x^2y-xy^2
5xy^2-(3xy^2-(4xy^2-2x^2y))+2x^2y-xy^2求
-3(xy-2x²)-[y²-(5xy-4x²)+2xy]
已知1/x-1/y=2,求3x+7xy-3y/2x-3xy-2y答案是1/x-1/y=2(y-x)/xy=2 得:x-y=-2xy(3x+7xy-3y)/(2x-3xy-2y)=[3(x-y)+7xy]/[2(x-y)-3xy]=(-6xy+7xy)/(-4xy-3xy)=xy/(-7xy)=-1/7 谁能帮我解释一下=[3(x-y)+7xy]/[2(x-y)-3xy]=(-6xy+7xy)/(-4xy-3xy) 是怎