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受欢迎的代数 >

(x-7)^4=625^7

解答

(x - 7)^{4} = 62 5^{7}

解答

x = 6254244140625 + 7, x = - 6254244140625 + 7

+1

十进制

x = 78132, x = - 78118

求解步骤

(x - 7)^{4} = 62 5^{7}

对于

(g (x))^{n} = f (a)

，n 为偶数，解为

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

解

x - 7 = 4 62 5^{7} : x = 6254244140625 + 7

解

x - 7 = - 4 62 5^{7} : x = - 6254244140625 + 7

解为

x = 6254244140625 + 7, x = - 6254244140625 + 7

作图

流行的例子

(2 x^{2} - 3)^{2} = 49

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1 - x^{9} = (1 - x) (1 + x + x^{2})

x^{4} - 81 = 0

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