3x²y-2y³x²-4x-y²+2的六次方
3x²y-2y³x²-4x-y²+2的六次方
因式分解:x的5次方-2x³y²+x*y的4次方
化简:(-3x³y)²+(2x²)³*(-y)²+4x的6次方*y
因式分解x的5次方y-x³y+2x²y-xy
先化简,再求值:(3x²y-2)×y-(9x的4次方y³-15x²y²)÷(3x
若x²y=3,求2xy(x的5次方y的2次方-3x³y-4x)的值
观察下列一串单项式的特点:-xy,2x²y,-4x³y,8x的4次方y,-16x的5次方y
多项式x³y³-4xy六次方+x4次方y-1/3x²y²的常数项
计算:8【x+y】八次方【x-y】六次方÷【2(x+y)三次方×(x-y)三次方】²=
{(z+y)(x-y)-(x-y)的2次方+2y(x-y)}除以4y
(x的4次方+y的4次方)²-(2x²y²)²因式分解
计算:a六次方÷(-2a²)÷(-3a³)100x四次方y六次方÷(-2xy`15x³y)