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受欢迎的代数 >

((x-3)^3)/3 =81

解答

\frac{( x - 3 ) ^{3}}{3} = 81

解答

x = 339 + 3, x = \frac{6 - 3 3 9}{2} + i \frac{3 3 9 3}{2}, x = \frac{6 - 3 3 9}{2} - i \frac{3 3 9 3}{2}

求解步骤

\frac{( x - 3 ) ^{3}}{3} = 81

在两边乘以

3

(x - 3)^{3} = 243

对于

g^{3} (x) = f (a)

解为

g (x) = 3 f (a), 3 f (a) \frac{- 1 - 3 i}{2}, 3 f (a) \frac{- 1 + 3 i}{2}

解

x - 3 = 3243 : x = 339 + 3

解

x - 3 = 3243 \frac{- 1 + 3 i}{2} : x = \frac{6 - 3 3 9}{2} + i \frac{3 3 9 3}{2}

解

x - 3 = 3243 \frac{- 1 - 3 i}{2} : x = \frac{6 - 3 3 9}{2} - i \frac{3 3 9 3}{2}

解为

x = 339 + 3, x = \frac{6 - 3 3 9}{2} + i \frac{3 3 9 3}{2}, x = \frac{6 - 3 3 9}{2} - i \frac{3 3 9 3}{2}

作图

流行的例子

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