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受欢迎的代数 >

2x^2-3=253

解答

2 x^{2} - 3 = 253

解答

x = 82, x = - 82

+1

十进制

x = 11.31370 \dots, x = - 11.31370 \dots

求解步骤

2 x^{2} - 3 = 253

将

3

到右边

2 x^{2} = 256

两边除以

2

x^{2} = 128

对于

x^{2} = f (a)

解为

x = f (a), - f (a)

x = 128, x = - 128

128 = 82

- 128 = - 82

x = 82, x = - 82

作图

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