(-2x²y³)²·(xy)³怎么解
(-2x²y³)²·(xy)³怎么解
计算:-2x²y(-2xy²)²+(2xy)³·(xy²)
[-xy/(x-y)²]²×(y²-xy/x)³
(3xy)² · (x²+xy-y²)-3xy(3x³y+3x²y
先化简,再求值:{xy(x²-3y)+3xy²}(-2xy)+x³y²(2x-y
x³y-2x²y²+xy³
计算[xy(x²-3y)+3xy²]·(-2xy)+x³y²(2x-y)
-2y³+(3xy²-x²y)-2(xy²-y³)
x²-2xy+y²分之x²+2xy-3y³如何因式分解
因式分解:(x+y)³+2xy-2x²y-2xy²-1
计算:(-7x²y)(2x²y-3xy³+xy)
-x²y+2xy²-y³ 因式分解