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受欢迎的代数 >

3x^2-100=500

解答

3 x^{2} - 100 = 500

解答

x = 102, x = - 102

+1

十进制

x = 14.14213 \dots, x = - 14.14213 \dots

求解步骤

3 x^{2} - 100 = 500

将

100

到右边

3 x^{2} = 600

两边除以

3

x^{2} = 200

对于

x^{2} = f (a)

解为

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

x = 200, x = - 200

200 = 102

- 200 = - 102

x = 102, x = - 102

作图

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