(x-y)³-(y-x)²
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(x-y)³-(y-x)²
(x-y)³-(y-x)²
(x-y)³-(y-x)²
(x-y)3-(y-x)2
=(x-y)3-(x-y)2
=(x-y)2(x-y)-(x-y)2
=(x-y)2(x-y-1)
(x-y)² (x-y-1)
(x-y/x+2y)³
x³(x-2y)+y³(2x-y)
因式分解:x³+y³
说明理由(5x³-7x³y+3x³y)+2x³-(-7x³y+3x²y+7x³)的值与x、
(x-y)³-(y-x)²
初二下册计算:(x-y /x+2y)³
有这样一道计算题:“计算(2x³-3x²y-2xy²)-(x³-2xy²+y³)+(-x&su甲同学把x=1/2错看成x=-1/2,但计算结果仍正确,你说是怎么一回事?后面是+(-x³+3x²y-y³)
化简再求值 4x³(-y³)²-3x×(-x)²(-y²)³滚
(x+y)²-(x³+y³)÷(x+y)
(xy-x²)³-x³(y-x)因式分解 帮一下吧
七年级数学题(x-y)³ ×(x-y)²×(y-x)
化简并求值:4x ³(-y ³)² -3x 乘(-x)²(-y²)³ 其中x=-3 y=-2
说明理由:多项式(5x³-7x³y+3x²y)+2x³-(+7x³+y3x²y+7x³)的值余x今晚就要 ,明天要交 .1.说明理由:多项式(5x³-7x³y+3x²y)+2x³-(+7x³+y3x²y+7x³)的
几道因式分解 (1)x³+x²+2xy+y²+y³(2)x³+3x²y+3xy²+y³(3)x³-3x²y+3xy²-y³(4)x³+3x²+3x+2
计算并写出每个运算步骤的根据[(-x²y³)²*(-x)³(-y²)]³这样算对不对[(-x²y³)²*(-x)³(-y²)]³ =[x^4*y^6*-x^3*-y^2]^3 (积与幂的乘方性质)=[(x^4*-x^3)*(y^6*-y^2)]^3
数学分式约分约分这个分式:x³y-xy³/x³-2x²y+y²x(有步骤)还有一个:x³-16x/x²-8x+16(有步骤)
数学化简或计算.化简1.√12a²b³(a≥0,b≥0)2.√1203.√12504.√8x³y(x≥0,y≥0)5.√12x³y^5(x≥0,y≥0)6.√x^5+x^4y²(x≥0,y≥0)7.√a^5+2a³b²+ab^4(a≥0,b≥0)8.√12x²y+24x&su
计算:(-2x²y)³+8(x²)²•(-x)²•(-y)³