(2x³y)²×(-2xy)+(2x³y)³÷(2x²)计算
计算:(-7x²y)(2x²y-3xy³+xy)
计算(2x³-3x²y-2xy²)-(x³-2xy²+y³)
计算:x²y-(2xy²-5x²y)+3xy²-y³
计算x²y³-2x(4xy³)
计算;(xy-x²)÷x²-2xy+y²/xy · x-y/x²
(2x³y)²×(-2xy)+(2x³y)³÷(2x²)计算
计算[xy(x²-3y)+3xy²]·(-2xy)+x³y²(2x-y)
x-y/x²÷x²-2xy+y²/xy*(xy-x²)
计算:(3x³y)²*(4y)²÷(2xy)³
计算:(-x)²x³·(-2y)³-(-2xy)²·(-3x)³y.
分式计算:(x²+2xy+y²)/(x²y+xy)*y/(x+y)
计算3x/8y×16y²/27x² (2xy-x²)÷x-2y/xy 2x-6/x