【计算】(-2x²y)²÷(2x的5次方y)(-xy²)³
【计算】(-2x²y)²÷(2x的5次方y)(-xy²)³
【计算】(-x²y)²÷(2分之1x的5次方y的6次方)×(-2xy²)³
因式分解x的5次方y-x³y+2x²y-xy
计算;(xy-x²)÷x²-2xy+y²/xy · x-y/x²
计算:5x3次方y*(-3y)²-6x²y²*(-xy)
计算:x²y-(2xy²-5x²y)+3xy²-y³
计算:(-7x²y)(2x²y-3xy³+xy)
计算:2(x²y³)³-(x³y²)²·y的5次方-(x
多项式x的4次方-2y的5次方+x³y-1/4xy³-x²y的4次方-xy+6是_____
计算:(x-y)的5次方(x-y)²(x-y)³
x-y/x²÷x²-2xy+y²/xy*(xy-x²)
计算2分之1xy²(-2xy)+3x²y的3次方=