-2分之1(4xy-8x²)+3分之1(xy-6x²y²)化简.刚刚那题谢谢你了.
-2分之1(4xy-8x²)+3分之1(xy-6x²y²)化简.刚刚那题谢谢你了.
(1)-2分之1xy(3y²-2xy+3x²y)
(xy-x²)除以xy分之x²-2xy+y²乘以x²分之x-y
计算:(xy-x²)乘 x-y分之xy
(3x²y-xy²)-3(x²y-2xy²) x=2分之1 y=3分之1
已知2X-3√xy-2y=0(x>0)求2x²+xy-9y²分之x²+4xy-16y
3xy+3y²分之x²+xy=3y分之( )
小明在做化简求值题:(xy-x²)÷xy分之x²-2xy+y²乘x²分之x-y
1.已知x+y=-4,xy=3,求5(2分之1xy+2y)+[6x-(2xy+y-3x)]的值
计算:1、(xy分之x²-y²)×(x-y分之x)-(y分之x);
【分解因式】 x²-xy+4分之1y² x²y-2xy²+y³ a(x
计算:2x+2y分之3y + x²+xy分之2xy