3.228x(-9)+(-3.272)x9-(-1.5)x9= 11.35x(-2/3)²+1.05x(-2²/9)-7.7x(-4/3²)=215+126x214÷215x126+89=赶紧来人啊

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/09 10:37:35

3.228x(-9)+(-3.272)x9-(-1.5)x9= 11.35x(-2/3)²+1.05x(-2²/9)-7.7x(-4/3²)=215+126x214÷215x126+89=赶紧来人啊
3.228x(-9)+(-3.272)x9-(-1.5)x9=
11.35x(-2/3)²+1.05x(-2²/9)-7.7x(-4/3²)=
215+126x214÷215x126+89=
赶紧来人啊

3.228x(-9)+(-3.272)x9-(-1.5)x9= 11.35x(-2/3)²+1.05x(-2²/9)-7.7x(-4/3²)=215+126x214÷215x126+89=赶紧来人啊
3.228x(-9)+(-3.272)x9-(-1.5)x9
=-3.228x9-3.272)x9+1.5x9
=(-3.228-3.272+1.5)x9
=5x9
=45
11.35x(-2/3)²+1.05x(-2²/9)-7.7x(-4/3²)
=11.35x4/9-1.05x4/9+7.7x4/9
=(11.35-1.05+7.7)x4/9
=18x4/9
=8
215+126x214÷215x126+89
=[215+126x(215-1)]÷(215x126+89)
=(215+126x215-126)÷(215x126+89)
=(126x215+89)÷(215x126+89)
=1

不知道


3.228x(-9)+(-3.272)x9-(-1.5)x9
=-3.228x9-3.272)x9+1.5x9
=(-3.228-3.272+1.5)x9
=5x9
=45

11.35x(-2/3)²+1.05x(-2²/9)-7.7x(-4/3²)
=11.35x4/9-1.05x4/9+7.7...

全部展开


3.228x(-9)+(-3.272)x9-(-1.5)x9
=-3.228x9-3.272)x9+1.5x9
=(-3.228-3.272+1.5)x9
=5x9
=45

11.35x(-2/3)²+1.05x(-2²/9)-7.7x(-4/3²)
=11.35x4/9-1.05x4/9+7.7x4/9
=(11.35-1.05+7.7)x4/9
=18x4/9
=8
215+126x214÷215x126+89
=[215+126x(215-1)]÷(215x126+89)
=(215+126x215-126)÷(215x126+89)
=(126x215+89)÷(215x126+89)
=1

收起