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受欢迎的代数 >

(4^2-x)^4=16

解答

(4^{2} - x)^{4} = 16

解答

x = 14, x = 18

求解步骤

(4^{2} - x)^{4} = 16

对于

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

，n 为偶数，解为

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

解

4^{2} - x = 416 : x = 14

解

4^{2} - x = - 416 : x = 18

解为

x = 14, x = 18

作图

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