(x +95)x=463.54怎么算x
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解决时间 2021-03-25 00:16
- 提问者网友:放下
- 2021-03-24 05:15
(x +95)x=463.54怎么算x
最佳答案
- 五星知识达人网友:末日狂欢
- 2021-03-24 05:40
(x +95)x=463.54
x²+95x=463.54
x²+95x+47.5²=463.54+47.5²
(x+47.5)²=2719.79
x+47.5=±√2719.79
x=-47.5±√2719.79
x1=98.6515
x2=3.6516
x²+95x=463.54
x²+95x+47.5²=463.54+47.5²
(x+47.5)²=2719.79
x+47.5=±√2719.79
x=-47.5±√2719.79
x1=98.6515
x2=3.6516
全部回答
- 1楼网友:不如潦草
- 2021-03-24 07:09
解:
(x +95)x=463.54
(x+47.5)²-47.5²=463.5
(x+47.5)²=463.5+2256.25
(x+47.5)²=2719.79
√(x+47.5)²=√2719.79
(x+47.5)=±52.15160591966464
解得x₁=4.65160591966464
x₂=-99.65160591966464
(x +95)x=463.54
(x+47.5)²-47.5²=463.5
(x+47.5)²=463.5+2256.25
(x+47.5)²=2719.79
√(x+47.5)²=√2719.79
(x+47.5)=±52.15160591966464
解得x₁=4.65160591966464
x₂=-99.65160591966464
- 2楼网友:迷人又混蛋
- 2021-03-24 06:55
66×(72+23)+95×34=66×95+95×34=95×(66+34)=95×100=9500
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