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受欢迎的代数 >

308=(x^2-154)0.77

解答

308 = (x^{2} - 154) 0.77

解答

x = 554, x = - 554

+1

十进制

x = 23.53720 \dots, x = - 23.53720 \dots

求解步骤

308 = (x^{2} - 154) \cdot 0.77

交换两边

(x^{2} - 154) \cdot 0.77 = 308

两边除以

0.77

x^{2} - 154 = 400

将

154

到右边

x^{2} = 554

对于

x^{2} = f (a)

解为

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

x = 554, x = - 554

作图

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