3.14x34x34减去3.14x4x9怎样简便算
答案:2 悬赏:30 手机版
解决时间 2021-02-26 00:07
- 提问者网友:ミ烙印ゝ
- 2021-02-25 02:49
3.14x34x34减去3.14x4x9怎样简便算
最佳答案
- 五星知识达人网友:酒醒三更
- 2021-02-25 04:25
3.14x34x34-3.14x4x9
=3.14*(34*34-4*9)
=3.14*(34^2-6^2)
=3.14*(34+6)(34-6)
=3.14*40*28
=125.6*28
=3516.8
=3.14*(34*34-4*9)
=3.14*(34^2-6^2)
=3.14*(34+6)(34-6)
=3.14*40*28
=125.6*28
=3516.8
全部回答
- 1楼网友:由着我着迷
- 2021-02-25 04:31
3.14x34x34-3.14x4x9=3.14x(34x34-6x6)=3.14x(34-6)x(34+6)
=3.14x28x40=3516.8
=3.14x28x40=3516.8
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