数学题啊!帮下啦!
填空题(-5a³+3a²b-a)÷(-a)=(15x²y-12xy²)÷(3xy)=(-2/3m的4次方+0.4m²-1...
填空题
(-5a³+3a²b-a)÷(-a)=
(15x²y-12xy²)÷(3xy)=
(-2/3m的4次方+0.4m²-1/2m)÷(-3/2m)=
计算
(-6x³-3x²)÷(-3x²)
(0.75x²y-0.5x³y²+1/4x的4次方y³)÷(-1/2x²y)
{(x-y)²-(x+y)²+x(2xy-y)}÷(-2y)
(-24a³b²c+8a²b³-12a²b²)÷(-8a²b²)
帮下啦 展开
(-5a³+3a²b-a)÷(-a)=
(15x²y-12xy²)÷(3xy)=
(-2/3m的4次方+0.4m²-1/2m)÷(-3/2m)=
计算
(-6x³-3x²)÷(-3x²)
(0.75x²y-0.5x³y²+1/4x的4次方y³)÷(-1/2x²y)
{(x-y)²-(x+y)²+x(2xy-y)}÷(-2y)
(-24a³b²c+8a²b³-12a²b²)÷(-8a²b²)
帮下啦 展开
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填空
1、(-5a³+3a²b-a)÷(-a)=5a²-3ab+1
2、(15x²y-12xy²)÷(3xy)=5x-4y
3、(-2/3m的4次方+0.4m²-1/2m)÷(-3/2m)=4/9m³-4/15m+1/3
计算
1、(-6x³-3x²)÷(-3x²)=2x+1
2、(0.75x²y-0.5x³y²+1/4x的4次方y³)÷(-1/2x²y)=-3/2+xy-1/2x²y²
3、{(x-y)²-(x+y)²+x(2xy-y)}÷(-2y)=[(x-y+x+y)(x-y-x-y)+x(2xy-y)]÷(-2y)
=[-4xy+2x²y-xy]÷(-2y)
=2.5x-x²
4、(-24a³b²c+8a²b³-12a²b²)÷(-8a²b²)=3ac-b+1.5
1、(-5a³+3a²b-a)÷(-a)=5a²-3ab+1
2、(15x²y-12xy²)÷(3xy)=5x-4y
3、(-2/3m的4次方+0.4m²-1/2m)÷(-3/2m)=4/9m³-4/15m+1/3
计算
1、(-6x³-3x²)÷(-3x²)=2x+1
2、(0.75x²y-0.5x³y²+1/4x的4次方y³)÷(-1/2x²y)=-3/2+xy-1/2x²y²
3、{(x-y)²-(x+y)²+x(2xy-y)}÷(-2y)=[(x-y+x+y)(x-y-x-y)+x(2xy-y)]÷(-2y)
=[-4xy+2x²y-xy]÷(-2y)
=2.5x-x²
4、(-24a³b²c+8a²b³-12a²b²)÷(-8a²b²)=3ac-b+1.5
2010-12-26
展开全部
填空
1、(-5a³+3a²b-a)÷(-a)=5a²-3ab+1
2、(15x²y-12xy²)÷(3xy)=5x-4y
3、(-2/3m的4次方+0.4m²-1/2m)÷(-3/2m)=4/9m³-4/15m+1/3
计算
1、(-6x³-3x²)÷(-3x²)=2x+1
2、(0.75x²y-0.5x³y²+1/4x的4次方y³)÷(-1/2x²y)=-3/2+xy-1/2x²y²
3、{(x-y)²-(x+y)²+x(2xy-y)}÷(-2y)=[(x-y+x+y)(x-y-x-y)+x(2xy-y)]÷(-2y)
=[-4xy+2x²y-xy]÷(-2y)
=2.5x-x²
4、(-24a³b²c+8a²b³-12a²b²)÷(-8a²b²)=3ac-b+1.5
(不要迷恋哥,哥只是个传说)
1、(-5a³+3a²b-a)÷(-a)=5a²-3ab+1
2、(15x²y-12xy²)÷(3xy)=5x-4y
3、(-2/3m的4次方+0.4m²-1/2m)÷(-3/2m)=4/9m³-4/15m+1/3
计算
1、(-6x³-3x²)÷(-3x²)=2x+1
2、(0.75x²y-0.5x³y²+1/4x的4次方y³)÷(-1/2x²y)=-3/2+xy-1/2x²y²
3、{(x-y)²-(x+y)²+x(2xy-y)}÷(-2y)=[(x-y+x+y)(x-y-x-y)+x(2xy-y)]÷(-2y)
=[-4xy+2x²y-xy]÷(-2y)
=2.5x-x²
4、(-24a³b²c+8a²b³-12a²b²)÷(-8a²b²)=3ac-b+1.5
(不要迷恋哥,哥只是个传说)
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