x⁴+4x³y+6x²y²+4xy³+y⁴=( )
x⁴+4x³y+6x²y²+4xy³+y⁴=( )
已知x²+y²-8x+6y+25=0,求(x-y+4xy/x-y)(x+y-4xy/x+y)
分解因式计算6x³y(x-y)³-4xy³(y-x)²
﹙4x³y²-2x⁴y²-½xy)÷(-1/2xy) (^人^)
2x+y=0,求4x²+2xy(x+y)+y³
多项式因式分解 1,(x-y)³-(x-y)²(x+y) 2,x(x²-xy)-(4x
x²+xy/(x-4y)(x+y),其中x=4,y=-1
【分解因式】 x²-xy+4分之1y² x²y-2xy²+y³ a(x
﹙4x³y²-2x⁴y²-½xy)
已知(4x-2y-1)²+根号(xy-2)=0,求4x³y-4x²y²+xy
已知x+y=4,xy=1,试分别求出x²-y²+8y和x³y+xy³的值
已知x/y=2,求2x(x+y)-y(x+y)/4x²-4xy+y²