我身边的好党员事迹:◆◇◆(X-2Y)(3X-7Y)^2+4(Y-2X)(X+Y)^2 如何分解因式???

来源：百度文库编辑：高校问答时间：2024/05/04 12:58:49

◆◇◆(X-2Y)(3X-7Y)^2+4(Y-2X)(X+Y)^2 如何分解因式???
还有 a^2+4b^2+9c^2-4ab-12bc+6ac
怎么分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分分

原式=（X-2Y）（3X-7Y+2X+2Y）（3X-7Y-2X-2Y）
=5（X-2Y）（X-Y）（X-9Y）

这是吗

你自己去问答案本身就是了撒

◆◇◆(X-2Y)(3X-7Y)^2+4(Y-2X)(X+Y)^2 如何分解因式??? (x-y)4*(y-x)3=(y-x)7 () （x-y)^3*(x-y)^2*(y-x) 3X(X-Y)+2Y(X-Y) (x+y)2-4(x+y-1) (x-y)^2×(y-x)^3=??? 已知X+Y=-4，求1/2（X+Y)+4(X-Y)-3(X-Y)-3/2(X+Y)-X+Y 若x,y ,z满足方程组1、3x+7y-x=3 2、4x+10y-z=2 求X+Y+Z的值 2y-3x-9x^2+4y^2 45(x-y)^3-30y(x-y)^2