(10xy-4y²-4x²)÷(2x-y)怎么计算?
计算 2xy[4x²y²-3y(xy+x²y)-xy²]
计算;(xy-x²)÷x²-2xy+y²/xy · x-y/x²
(xy-x²)²÷(x-y)²/xy·x-y/x² 计算
计算:(3x³y)²*(4y)²÷(2xy)³
√x²y﹙3√xy²-2√x/y+4√y/x²) 在初中怎么计算
x-y/x²÷x²-2xy+y²/xy*(xy-x²)
分式计算:(x²+2xy+y²)/(x²y+xy)*y/(x+y)
计算:(xy-x²)乘 x-y分之xy
分解因式:(x²+4x+4+y²)÷(x+y+2); 计算;(x²y)²*(xy
计算(3x²-2xy分之y²-4x²)÷(3x-2y分之2x+y)
计算4xy+(x-2y)的平方+(x+3y)(3y-x)
3x²y+xy²-[2xy²-4x²y+(x²y-2xy²)