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受欢迎的代数 >

200= 1/3x^23.142*12

解答

200 = \frac{1}{3} \cdot x^{2} \cdot 3.142 \cdot 12

解答

x = \frac{50 10}{1571}, x = - \frac{50 10}{1571}

+1

十进制

x = 3.98916 \dots, x = - 3.98916 \dots

求解步骤

200 = \frac{1}{3} x^{2} \cdot 3.142 \cdot 12

交换两边

\frac{1}{3} x^{2} \cdot 3.142 \cdot 12 = 200

在两边乘以

1000

12568 x^{2} = 200000

两边除以

12568

x^{2} = \frac{25000}{1571}

对于

x^{2} = f (a)

解为

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

x = \frac{25000}{1571}, x = - \frac{25000}{1571}

\frac{25000}{1571} = \frac{50 10}{1571}

- \frac{25000}{1571} = - \frac{50 10}{1571}

x = \frac{50 10}{1571}, x = - \frac{50 10}{1571}

作图

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12 x^{2} - 72 x + 104 = 0

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