化简.x^2-3xy/x^2-6xy+9y^2
2个回答
x^2-3xy/x^2-6xy+9y^2
=x(x-3y)/(x-3y)^2
=x/(x-3y)
相关问题
化简:(2x2y-3xy2)-(6x2y-3xy2).
化简:(2x2y-3xy2)-(6x2y-3xy2).
化简求值:[2x^2y^2-(xy+3)(xy-3)-9]/xy,其中x=2,y=-1/3
化简:(1)-4x2y+8xy2-9x2y-21xy2(2)4(x2+xy-6)-3(2x2-xy)(3)(5x2+4x
(1)化简:3x2y-[2xy-(xy-[3/2]x2y+2xy)]
化简:3(x^2-2xy)-[3x^2-2y+2(xy+y)]
化简4(x2+xy-6)-3(2x2-xy)
化简(3X²-XY+Y²)-5(X²-XY+2Y²)
先化简,再求值:9x^3-xy^2/(3x+y)(9x^2-6xy+y^2),其中y/x等于1/3咋做?
化简:x-y/x+3y÷x^2-y^2/x^2+6xy+9y^2-2y/x+y