代数示例

$f (x) = \frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}$

解题步骤 1

将 $f (x) = \frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}$ 写为等式。

$y = \frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}$

解题步骤 2

交换变量。

$x = \frac{{(y - 9)}^{\frac{1}{5}} + 5}{4}$

解题步骤 3

求解 $y$ 。

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解题步骤 3.1

将方程重写为 $\frac{{(y - 9)}^{\frac{1}{5}} + 5}{4} = x$ 。

$\frac{{(y - 9)}^{\frac{1}{5}} + 5}{4} = x$

解题步骤 3.2

等式两边同时乘以 $4$ 。

$4 \frac{{(y - 9)}^{\frac{1}{5}} + 5}{4} = 4 x$

解题步骤 3.3

化简左边。

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解题步骤 3.3.1

约去 $4$ 的公因数。

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解题步骤 3.3.1.1

约去公因数。

$4 \frac{{(y - 9)}^{\frac{1}{5}} + 5}{4} = 4 x$

解题步骤 3.3.1.2

重写表达式。

${(y - 9)}^{\frac{1}{5}} + 5 = 4 x$

解题步骤 3.4

从等式两边同时减去 $5$ 。

${(y - 9)}^{\frac{1}{5}} = 4 x - 5$

解题步骤 3.5

将方程两边同时进行 $5$ 次方运算以消去左边的分数指数。

${({(y - 9)}^{\frac{1}{5}})}^{5} = {(4 x - 5)}^{5}$

解题步骤 3.6

化简指数。

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解题步骤 3.6.1

化简左边。

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解题步骤 3.6.1.1

化简 ${({(y - 9)}^{\frac{1}{5}})}^{5}$ 。

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解题步骤 3.6.1.1.1

将 ${({(y - 9)}^{\frac{1}{5}})}^{5}$ 中的指数相乘。

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解题步骤 3.6.1.1.1.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

${(y - 9)}^{\frac{1}{5} \cdot 5} = {(4 x - 5)}^{5}$

解题步骤 3.6.1.1.1.2

约去 $5$ 的公因数。

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解题步骤 3.6.1.1.1.2.1

约去公因数。

${(y - 9)}^{\frac{1}{5} \cdot 5} = {(4 x - 5)}^{5}$

解题步骤 3.6.1.1.1.2.2

重写表达式。

${(y - 9)}^{1} = {(4 x - 5)}^{5}$

解题步骤 3.6.1.1.2

化简。

$y - 9 = {(4 x - 5)}^{5}$

解题步骤 3.6.2

化简右边。

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解题步骤 3.6.2.1

化简 ${(4 x - 5)}^{5}$ 。

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解题步骤 3.6.2.1.1

使用二项式定理。

$y - 9 = {(4 x)}^{5} + 5 {(4 x)}^{4} \cdot - 5 + 10 {(4 x)}^{3} {(- 5)}^{2} + 10 {(4 x)}^{2} {(- 5)}^{3} + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2

化简每一项。

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解题步骤 3.6.2.1.2.1

对 $4 x$ 运用乘积法则。

$y - 9 = 4^{5} x^{5} + 5 {(4 x)}^{4} \cdot - 5 + 10 {(4 x)}^{3} {(- 5)}^{2} + 10 {(4 x)}^{2} {(- 5)}^{3} + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.2

对 $4$ 进行 $5$ 次方运算。

$y - 9 = 1024 x^{5} + 5 {(4 x)}^{4} \cdot - 5 + 10 {(4 x)}^{3} {(- 5)}^{2} + 10 {(4 x)}^{2} {(- 5)}^{3} + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.3

对 $4 x$ 运用乘积法则。

$y - 9 = 1024 x^{5} + 5 (4^{4} x^{4}) \cdot - 5 + 10 {(4 x)}^{3} {(- 5)}^{2} + 10 {(4 x)}^{2} {(- 5)}^{3} + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.4

对 $4$ 进行 $4$ 次方运算。

$y - 9 = 1024 x^{5} + 5 (256 x^{4}) \cdot - 5 + 10 {(4 x)}^{3} {(- 5)}^{2} + 10 {(4 x)}^{2} {(- 5)}^{3} + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.5

将 $256$ 乘以 $5$ 。

$y - 9 = 1024 x^{5} + 1280 x^{4} \cdot - 5 + 10 {(4 x)}^{3} {(- 5)}^{2} + 10 {(4 x)}^{2} {(- 5)}^{3} + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.6

将 $- 5$ 乘以 $1280$ 。

$y - 9 = 1024 x^{5} - 6400 x^{4} + 10 {(4 x)}^{3} {(- 5)}^{2} + 10 {(4 x)}^{2} {(- 5)}^{3} + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.7

对 $4 x$ 运用乘积法则。

$y - 9 = 1024 x^{5} - 6400 x^{4} + 10 (4^{3} x^{3}) {(- 5)}^{2} + 10 {(4 x)}^{2} {(- 5)}^{3} + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.8

对 $4$ 进行 $3$ 次方运算。

$y - 9 = 1024 x^{5} - 6400 x^{4} + 10 (64 x^{3}) {(- 5)}^{2} + 10 {(4 x)}^{2} {(- 5)}^{3} + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.9

将 $64$ 乘以 $10$ 。

$y - 9 = 1024 x^{5} - 6400 x^{4} + 640 x^{3} {(- 5)}^{2} + 10 {(4 x)}^{2} {(- 5)}^{3} + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.10

对 $- 5$ 进行 $2$ 次方运算。

$y - 9 = 1024 x^{5} - 6400 x^{4} + 640 x^{3} \cdot 25 + 10 {(4 x)}^{2} {(- 5)}^{3} + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.11

将 $25$ 乘以 $640$ 。

$y - 9 = 1024 x^{5} - 6400 x^{4} + 16000 x^{3} + 10 {(4 x)}^{2} {(- 5)}^{3} + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.12

对 $4 x$ 运用乘积法则。

$y - 9 = 1024 x^{5} - 6400 x^{4} + 16000 x^{3} + 10 (4^{2} x^{2}) {(- 5)}^{3} + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.13

对 $4$ 进行 $2$ 次方运算。

$y - 9 = 1024 x^{5} - 6400 x^{4} + 16000 x^{3} + 10 (16 x^{2}) {(- 5)}^{3} + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.14

将 $16$ 乘以 $10$ 。

$y - 9 = 1024 x^{5} - 6400 x^{4} + 16000 x^{3} + 160 x^{2} {(- 5)}^{3} + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.15

对 $- 5$ 进行 $3$ 次方运算。

$y - 9 = 1024 x^{5} - 6400 x^{4} + 16000 x^{3} + 160 x^{2} \cdot - 125 + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.16

将 $- 125$ 乘以 $160$ 。

$y - 9 = 1024 x^{5} - 6400 x^{4} + 16000 x^{3} - 20000 x^{2} + 5 (4 x) {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.17

将 $4$ 乘以 $5$ 。

$y - 9 = 1024 x^{5} - 6400 x^{4} + 16000 x^{3} - 20000 x^{2} + 20 x {(- 5)}^{4} + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.18

对 $- 5$ 进行 $4$ 次方运算。

$y - 9 = 1024 x^{5} - 6400 x^{4} + 16000 x^{3} - 20000 x^{2} + 20 x \cdot 625 + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.19

将 $625$ 乘以 $20$ 。

$y - 9 = 1024 x^{5} - 6400 x^{4} + 16000 x^{3} - 20000 x^{2} + 12500 x + {(- 5)}^{5}$

解题步骤 3.6.2.1.2.20

对 $- 5$ 进行 $5$ 次方运算。

$y - 9 = 1024 x^{5} - 6400 x^{4} + 16000 x^{3} - 20000 x^{2} + 12500 x - 3125$

解题步骤 3.7

将所有不包含 $y$ 的项移到等式右边。

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解题步骤 3.7.1

在等式两边都加上 $9$ 。

$y = 1024 x^{5} - 6400 x^{4} + 16000 x^{3} - 20000 x^{2} + 12500 x - 3125 + 9$

解题步骤 3.7.2

将 $- 3125$ 和 $9$ 相加。

$y = 1024 x^{5} - 6400 x^{4} + 16000 x^{3} - 20000 x^{2} + 12500 x - 3116$

解题步骤 4

使用 $f^{- 1} (x)$ 替换 $y$ ，以得到最终答案。

$f^{- 1} (x) = 1024 x^{5} - 6400 x^{4} + 16000 x^{3} - 20000 x^{2} + 12500 x - 3116$

解题步骤 5

验证 $f^{- 1} (x) = 1024 x^{5} - 6400 x^{4} + 16000 x^{3} - 20000 x^{2} + 12500 x - 3116$ 是否为 $f (x) = \frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}$ 的反函数。

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解题步骤 5.1

要验证反函数，请检查 $f^{- 1} (f (x)) = x$ 和 $f (f^{- 1} (x)) = x$ 是否成立。

解题步骤 5.2

计算 $f^{- 1} (f (x))$ 。

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解题步骤 5.2.1

建立复合结果函数。

$f^{- 1} (f (x))$

解题步骤 5.2.2

通过将 $f$ 的值代入 $f^{- 1}$ 来计算 $f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = 1024 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3

化简每一项。

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解题步骤 5.2.3.1

对 $\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}$ 运用乘积法则。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = 1024 (\frac{{({(x - 9)}^{\frac{1}{5}} + 5)}^{5}}{4^{5}}) - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.2

对 $4$ 进行 $5$ 次方运算。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = 1024 (\frac{{({(x - 9)}^{\frac{1}{5}} + 5)}^{5}}{1024}) - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.3

约去 $1024$ 的公因数。

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解题步骤 5.2.3.3.1

约去公因数。

解题步骤 5.2.3.3.2

重写表达式。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = {({(x - 9)}^{\frac{1}{5}} + 5)}^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.4

使用二项式定理。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = {({(x - 9)}^{\frac{1}{5}})}^{5} + 5 {({(x - 9)}^{\frac{1}{5}})}^{4} \cdot 5 + 10 {({(x - 9)}^{\frac{1}{5}})}^{3} \cdot 5^{2} + 10 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{3} + 5 {(x - 9)}^{\frac{1}{5}} \cdot 5^{4} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5

化简每一项。

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解题步骤 5.2.3.5.1

将 ${({(x - 9)}^{\frac{1}{5}})}^{5}$ 中的指数相乘。

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解题步骤 5.2.3.5.1.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = {(x - 9)}^{\frac{1}{5} \cdot 5} + 5 {({(x - 9)}^{\frac{1}{5}})}^{4} \cdot 5 + 10 {({(x - 9)}^{\frac{1}{5}})}^{3} \cdot 5^{2} + 10 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{3} + 5 {(x - 9)}^{\frac{1}{5}} \cdot 5^{4} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.1.2

约去 $5$ 的公因数。

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解题步骤 5.2.3.5.1.2.1

约去公因数。

解题步骤 5.2.3.5.1.2.2

重写表达式。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = (x - 9) + 5 {({(x - 9)}^{\frac{1}{5}})}^{4} \cdot 5 + 10 {({(x - 9)}^{\frac{1}{5}})}^{3} \cdot 5^{2} + 10 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{3} + 5 {(x - 9)}^{\frac{1}{5}} \cdot 5^{4} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.2

化简。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 5 {({(x - 9)}^{\frac{1}{5}})}^{4} \cdot 5 + 10 {({(x - 9)}^{\frac{1}{5}})}^{3} \cdot 5^{2} + 10 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{3} + 5 {(x - 9)}^{\frac{1}{5}} \cdot 5^{4} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.3

将 ${({(x - 9)}^{\frac{1}{5}})}^{4}$ 中的指数相乘。

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解题步骤 5.2.3.5.3.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 5 {(x - 9)}^{\frac{1}{5} \cdot 4} \cdot 5 + 10 {({(x - 9)}^{\frac{1}{5}})}^{3} \cdot 5^{2} + 10 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{3} + 5 {(x - 9)}^{\frac{1}{5}} \cdot 5^{4} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.3.2

组合 $\frac{1}{5}$ 和 $4$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 5 {(x - 9)}^{\frac{4}{5}} \cdot 5 + 10 {({(x - 9)}^{\frac{1}{5}})}^{3} \cdot 5^{2} + 10 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{3} + 5 {(x - 9)}^{\frac{1}{5}} \cdot 5^{4} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.4

将 $5$ 乘以 $5$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 25 {(x - 9)}^{\frac{4}{5}} + 10 {({(x - 9)}^{\frac{1}{5}})}^{3} \cdot 5^{2} + 10 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{3} + 5 {(x - 9)}^{\frac{1}{5}} \cdot 5^{4} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.5

将 ${({(x - 9)}^{\frac{1}{5}})}^{3}$ 中的指数相乘。

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解题步骤 5.2.3.5.5.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 25 {(x - 9)}^{\frac{4}{5}} + 10 {(x - 9)}^{\frac{1}{5} \cdot 3} \cdot 5^{2} + 10 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{3} + 5 {(x - 9)}^{\frac{1}{5}} \cdot 5^{4} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.5.2

组合 $\frac{1}{5}$ 和 $3$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 25 {(x - 9)}^{\frac{4}{5}} + 10 {(x - 9)}^{\frac{3}{5}} \cdot 5^{2} + 10 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{3} + 5 {(x - 9)}^{\frac{1}{5}} \cdot 5^{4} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.6

对 $5$ 进行 $2$ 次方运算。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 25 {(x - 9)}^{\frac{4}{5}} + 10 {(x - 9)}^{\frac{3}{5}} \cdot 25 + 10 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{3} + 5 {(x - 9)}^{\frac{1}{5}} \cdot 5^{4} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.7

将 $25$ 乘以 $10$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 10 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{3} + 5 {(x - 9)}^{\frac{1}{5}} \cdot 5^{4} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.8

将 ${({(x - 9)}^{\frac{1}{5}})}^{2}$ 中的指数相乘。

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解题步骤 5.2.3.5.8.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 10 {(x - 9)}^{\frac{1}{5} \cdot 2} \cdot 5^{3} + 5 {(x - 9)}^{\frac{1}{5}} \cdot 5^{4} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.8.2

组合 $\frac{1}{5}$ 和 $2$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 10 {(x - 9)}^{\frac{2}{5}} \cdot 5^{3} + 5 {(x - 9)}^{\frac{1}{5}} \cdot 5^{4} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.9

对 $5$ 进行 $3$ 次方运算。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 10 {(x - 9)}^{\frac{2}{5}} \cdot 125 + 5 {(x - 9)}^{\frac{1}{5}} \cdot 5^{4} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.10

将 $125$ 乘以 $10$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 5 {(x - 9)}^{\frac{1}{5}} \cdot 5^{4} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.11

通过指数相加将 $5$ 乘以 $5^{4}$ 。

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解题步骤 5.2.3.5.11.1

移动 $5^{4}$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 5^{4} \cdot (5 {(x - 9)}^{\frac{1}{5}}) + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.11.2

将 $5^{4}$ 乘以 $5$ 。

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解题步骤 5.2.3.5.11.2.1

对 $5$ 进行 $1$ 次方运算。

解题步骤 5.2.3.5.11.2.2

使用幂法则 $a^{m} a^{n} = a^{m + n}$ 合并指数。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 5^{4 + 1} {(x - 9)}^{\frac{1}{5}} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.11.3

将 $4$ 和 $1$ 相加。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 5^{5} {(x - 9)}^{\frac{1}{5}} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.12

对 $5$ 进行 $5$ 次方运算。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 5^{5} - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.5.13

对 $5$ 进行 $5$ 次方运算。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9 + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3125 - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.6

将 $- 9$ 和 $3125$ 相加。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 6400 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.7

对 $\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}$ 运用乘积法则。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 6400 \frac{{({(x - 9)}^{\frac{1}{5}} + 5)}^{4}}{4^{4}} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.8

对 $4$ 进行 $4$ 次方运算。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 6400 \frac{{({(x - 9)}^{\frac{1}{5}} + 5)}^{4}}{256} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.9

约去 $256$ 的公因数。

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解题步骤 5.2.3.9.1

从 $- 6400$ 中分解出因数 $256$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 + 256 (- 25) (\frac{{({(x - 9)}^{\frac{1}{5}} + 5)}^{4}}{256}) + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.9.2

约去公因数。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 + 256 \cdot (- 25 \frac{{({(x - 9)}^{\frac{1}{5}} + 5)}^{4}}{256}) + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.9.3

重写表达式。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {({(x - 9)}^{\frac{1}{5}} + 5)}^{4} + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.10

使用二项式定理。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 ({({(x - 9)}^{\frac{1}{5}})}^{4} + 4 {({(x - 9)}^{\frac{1}{5}})}^{3} \cdot 5 + 6 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{2} + 4 {(x - 9)}^{\frac{1}{5}} \cdot 5^{3} + 5^{4}) + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.11

化简每一项。

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解题步骤 5.2.3.11.1

将 ${({(x - 9)}^{\frac{1}{5}})}^{4}$ 中的指数相乘。

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解题步骤 5.2.3.11.1.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 ({(x - 9)}^{\frac{1}{5} \cdot 4} + 4 {({(x - 9)}^{\frac{1}{5}})}^{3} \cdot 5 + 6 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{2} + 4 {(x - 9)}^{\frac{1}{5}} \cdot 5^{3} + 5^{4}) + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.11.1.2

组合 $\frac{1}{5}$ 和 $4$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 ({(x - 9)}^{\frac{4}{5}} + 4 {({(x - 9)}^{\frac{1}{5}})}^{3} \cdot 5 + 6 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{2} + 4 {(x - 9)}^{\frac{1}{5}} \cdot 5^{3} + 5^{4}) + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.11.2

将 ${({(x - 9)}^{\frac{1}{5}})}^{3}$ 中的指数相乘。

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解题步骤 5.2.3.11.2.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 ({(x - 9)}^{\frac{4}{5}} + 4 {(x - 9)}^{\frac{1}{5} \cdot 3} \cdot 5 + 6 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{2} + 4 {(x - 9)}^{\frac{1}{5}} \cdot 5^{3} + 5^{4}) + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.11.2.2

组合 $\frac{1}{5}$ 和 $3$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 ({(x - 9)}^{\frac{4}{5}} + 4 {(x - 9)}^{\frac{3}{5}} \cdot 5 + 6 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{2} + 4 {(x - 9)}^{\frac{1}{5}} \cdot 5^{3} + 5^{4}) + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.11.3

将 $5$ 乘以 $4$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 ({(x - 9)}^{\frac{4}{5}} + 20 {(x - 9)}^{\frac{3}{5}} + 6 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5^{2} + 4 {(x - 9)}^{\frac{1}{5}} \cdot 5^{3} + 5^{4}) + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.11.4

将 ${({(x - 9)}^{\frac{1}{5}})}^{2}$ 中的指数相乘。

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解题步骤 5.2.3.11.4.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 ({(x - 9)}^{\frac{4}{5}} + 20 {(x - 9)}^{\frac{3}{5}} + 6 {(x - 9)}^{\frac{1}{5} \cdot 2} \cdot 5^{2} + 4 {(x - 9)}^{\frac{1}{5}} \cdot 5^{3} + 5^{4}) + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.11.4.2

组合 $\frac{1}{5}$ 和 $2$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 ({(x - 9)}^{\frac{4}{5}} + 20 {(x - 9)}^{\frac{3}{5}} + 6 {(x - 9)}^{\frac{2}{5}} \cdot 5^{2} + 4 {(x - 9)}^{\frac{1}{5}} \cdot 5^{3} + 5^{4}) + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.11.5

对 $5$ 进行 $2$ 次方运算。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 ({(x - 9)}^{\frac{4}{5}} + 20 {(x - 9)}^{\frac{3}{5}} + 6 {(x - 9)}^{\frac{2}{5}} \cdot 25 + 4 {(x - 9)}^{\frac{1}{5}} \cdot 5^{3} + 5^{4}) + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.11.6

将 $25$ 乘以 $6$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 ({(x - 9)}^{\frac{4}{5}} + 20 {(x - 9)}^{\frac{3}{5}} + 150 {(x - 9)}^{\frac{2}{5}} + 4 {(x - 9)}^{\frac{1}{5}} \cdot 5^{3} + 5^{4}) + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.11.7

对 $5$ 进行 $3$ 次方运算。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 ({(x - 9)}^{\frac{4}{5}} + 20 {(x - 9)}^{\frac{3}{5}} + 150 {(x - 9)}^{\frac{2}{5}} + 4 {(x - 9)}^{\frac{1}{5}} \cdot 125 + 5^{4}) + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.11.8

将 $125$ 乘以 $4$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 ({(x - 9)}^{\frac{4}{5}} + 20 {(x - 9)}^{\frac{3}{5}} + 150 {(x - 9)}^{\frac{2}{5}} + 500 {(x - 9)}^{\frac{1}{5}} + 5^{4}) + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.11.9

对 $5$ 进行 $4$ 次方运算。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 ({(x - 9)}^{\frac{4}{5}} + 20 {(x - 9)}^{\frac{3}{5}} + 150 {(x - 9)}^{\frac{2}{5}} + 500 {(x - 9)}^{\frac{1}{5}} + 625) + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.12

运用分配律。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 25 (20 {(x - 9)}^{\frac{3}{5}}) - 25 (150 {(x - 9)}^{\frac{2}{5}}) - 25 (500 {(x - 9)}^{\frac{1}{5}}) - 25 \cdot 625 + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.13

化简。

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解题步骤 5.2.3.13.1

将 $20$ 乘以 $- 25$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 25 (150 {(x - 9)}^{\frac{2}{5}}) - 25 (500 {(x - 9)}^{\frac{1}{5}}) - 25 \cdot 625 + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.13.2

将 $150$ 乘以 $- 25$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 25 (500 {(x - 9)}^{\frac{1}{5}}) - 25 \cdot 625 + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.13.3

将 $500$ 乘以 $- 25$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 25 \cdot 625 + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.13.4

将 $- 25$ 乘以 $625$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 16000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.14

对 $\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}$ 运用乘积法则。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 16000 (\frac{{({(x - 9)}^{\frac{1}{5}} + 5)}^{3}}{4^{3}}) - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.15

对 $4$ 进行 $3$ 次方运算。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 16000 (\frac{{({(x - 9)}^{\frac{1}{5}} + 5)}^{3}}{64}) - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.16

约去 $64$ 的公因数。

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解题步骤 5.2.3.16.1

从 $16000$ 中分解出因数 $64$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 64 (250) (\frac{{({(x - 9)}^{\frac{1}{5}} + 5)}^{3}}{64}) - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.16.2

约去公因数。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 64 \cdot (250 (\frac{{({(x - 9)}^{\frac{1}{5}} + 5)}^{3}}{64})) - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.16.3

重写表达式。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {({(x - 9)}^{\frac{1}{5}} + 5)}^{3} - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.17

使用二项式定理。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 ({({(x - 9)}^{\frac{1}{5}})}^{3} + 3 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5 + 3 {(x - 9)}^{\frac{1}{5}} \cdot 5^{2} + 5^{3}) - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.18

化简每一项。

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解题步骤 5.2.3.18.1

将 ${({(x - 9)}^{\frac{1}{5}})}^{3}$ 中的指数相乘。

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解题步骤 5.2.3.18.1.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 ({(x - 9)}^{\frac{1}{5} \cdot 3} + 3 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5 + 3 {(x - 9)}^{\frac{1}{5}} \cdot 5^{2} + 5^{3}) - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.18.1.2

组合 $\frac{1}{5}$ 和 $3$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 ({(x - 9)}^{\frac{3}{5}} + 3 {({(x - 9)}^{\frac{1}{5}})}^{2} \cdot 5 + 3 {(x - 9)}^{\frac{1}{5}} \cdot 5^{2} + 5^{3}) - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.18.2

将 ${({(x - 9)}^{\frac{1}{5}})}^{2}$ 中的指数相乘。

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解题步骤 5.2.3.18.2.1

运用幂法则并将指数相乘， ${(a^{m})}^{n} = a^{m n}$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 ({(x - 9)}^{\frac{3}{5}} + 3 {(x - 9)}^{\frac{1}{5} \cdot 2} \cdot 5 + 3 {(x - 9)}^{\frac{1}{5}} \cdot 5^{2} + 5^{3}) - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.18.2.2

组合 $\frac{1}{5}$ 和 $2$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 ({(x - 9)}^{\frac{3}{5}} + 3 {(x - 9)}^{\frac{2}{5}} \cdot 5 + 3 {(x - 9)}^{\frac{1}{5}} \cdot 5^{2} + 5^{3}) - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.18.3

将 $5$ 乘以 $3$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 ({(x - 9)}^{\frac{3}{5}} + 15 {(x - 9)}^{\frac{2}{5}} + 3 {(x - 9)}^{\frac{1}{5}} \cdot 5^{2} + 5^{3}) - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.18.4

对 $5$ 进行 $2$ 次方运算。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 ({(x - 9)}^{\frac{3}{5}} + 15 {(x - 9)}^{\frac{2}{5}} + 3 {(x - 9)}^{\frac{1}{5}} \cdot 25 + 5^{3}) - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.18.5

将 $25$ 乘以 $3$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 ({(x - 9)}^{\frac{3}{5}} + 15 {(x - 9)}^{\frac{2}{5}} + 75 {(x - 9)}^{\frac{1}{5}} + 5^{3}) - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.18.6

对 $5$ 进行 $3$ 次方运算。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 ({(x - 9)}^{\frac{3}{5}} + 15 {(x - 9)}^{\frac{2}{5}} + 75 {(x - 9)}^{\frac{1}{5}} + 125) - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.19

运用分配律。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 250 (15 {(x - 9)}^{\frac{2}{5}}) + 250 (75 {(x - 9)}^{\frac{1}{5}}) + 250 \cdot 125 - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.20

化简。

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解题步骤 5.2.3.20.1

将 $15$ 乘以 $250$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 250 (75 {(x - 9)}^{\frac{1}{5}}) + 250 \cdot 125 - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.20.2

将 $75$ 乘以 $250$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 250 \cdot 125 - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.20.3

将 $250$ 乘以 $125$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 20000 {(\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.21

对 $\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}$ 运用乘积法则。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 20000 \frac{{({(x - 9)}^{\frac{1}{5}} + 5)}^{2}}{4^{2}} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.22

对 $4$ 进行 $2$ 次方运算。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 20000 \frac{{({(x - 9)}^{\frac{1}{5}} + 5)}^{2}}{16} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.23

约去 $16$ 的公因数。

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解题步骤 5.2.3.23.1

从 $- 20000$ 中分解出因数 $16$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 + 16 (- 1250) (\frac{{({(x - 9)}^{\frac{1}{5}} + 5)}^{2}}{16}) + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.23.2

约去公因数。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 + 16 \cdot (- 1250 \frac{{({(x - 9)}^{\frac{1}{5}} + 5)}^{2}}{16}) + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.23.3

重写表达式。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 {({(x - 9)}^{\frac{1}{5}} + 5)}^{2} + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.24

将 ${({(x - 9)}^{\frac{1}{5}} + 5)}^{2}$ 重写为 $({(x - 9)}^{\frac{1}{5}} + 5) ({(x - 9)}^{\frac{1}{5}} + 5)$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 (({(x - 9)}^{\frac{1}{5}} + 5) ({(x - 9)}^{\frac{1}{5}} + 5)) + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.25

使用 FOIL 方法展开 $({(x - 9)}^{\frac{1}{5}} + 5) ({(x - 9)}^{\frac{1}{5}} + 5)$ 。

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解题步骤 5.2.3.25.1

运用分配律。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 ({(x - 9)}^{\frac{1}{5}} ({(x - 9)}^{\frac{1}{5}} + 5) + 5 ({(x - 9)}^{\frac{1}{5}} + 5)) + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.25.2

运用分配律。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 ({(x - 9)}^{\frac{1}{5}} {(x - 9)}^{\frac{1}{5}} + {(x - 9)}^{\frac{1}{5}} \cdot 5 + 5 ({(x - 9)}^{\frac{1}{5}} + 5)) + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.25.3

运用分配律。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 ({(x - 9)}^{\frac{1}{5}} {(x - 9)}^{\frac{1}{5}} + {(x - 9)}^{\frac{1}{5}} \cdot 5 + 5 {(x - 9)}^{\frac{1}{5}} + 5 \cdot 5) + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.26

化简并合并同类项。

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解题步骤 5.2.3.26.1

化简每一项。

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解题步骤 5.2.3.26.1.1

通过指数相加将 ${(x - 9)}^{\frac{1}{5}}$ 乘以 ${(x - 9)}^{\frac{1}{5}}$ 。

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解题步骤 5.2.3.26.1.1.1

使用幂法则 $a^{m} a^{n} = a^{m + n}$ 合并指数。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 ({(x - 9)}^{\frac{1}{5} + \frac{1}{5}} + {(x - 9)}^{\frac{1}{5}} \cdot 5 + 5 {(x - 9)}^{\frac{1}{5}} + 5 \cdot 5) + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.26.1.1.2

在公分母上合并分子。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 ({(x - 9)}^{\frac{1 + 1}{5}} + {(x - 9)}^{\frac{1}{5}} \cdot 5 + 5 {(x - 9)}^{\frac{1}{5}} + 5 \cdot 5) + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.26.1.1.3

将 $1$ 和 $1$ 相加。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 ({(x - 9)}^{\frac{2}{5}} + {(x - 9)}^{\frac{1}{5}} \cdot 5 + 5 {(x - 9)}^{\frac{1}{5}} + 5 \cdot 5) + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.26.1.2

将 $5$ 移到 ${(x - 9)}^{\frac{1}{5}}$ 的左侧。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 ({(x - 9)}^{\frac{2}{5}} + 5 \cdot {(x - 9)}^{\frac{1}{5}} + 5 {(x - 9)}^{\frac{1}{5}} + 5 \cdot 5) + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.26.1.3

将 $5$ 乘以 $5$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 ({(x - 9)}^{\frac{2}{5}} + 5 {(x - 9)}^{\frac{1}{5}} + 5 {(x - 9)}^{\frac{1}{5}} + 25) + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.26.2

将 $5 {(x - 9)}^{\frac{1}{5}}$ 和 $5 {(x - 9)}^{\frac{1}{5}}$ 相加。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 ({(x - 9)}^{\frac{2}{5}} + 10 {(x - 9)}^{\frac{1}{5}} + 25) + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.27

运用分配律。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 {(x - 9)}^{\frac{2}{5}} - 1250 (10 {(x - 9)}^{\frac{1}{5}}) - 1250 \cdot 25 + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.28

化简。

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解题步骤 5.2.3.28.1

将 $10$ 乘以 $- 1250$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 1250 \cdot 25 + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.28.2

将 $- 1250$ 乘以 $25$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 31250 + 12500 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.29

约去 $4$ 的公因数。

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解题步骤 5.2.3.29.1

从 $12500$ 中分解出因数 $4$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 31250 + 4 (3125) (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) - 3116$

解题步骤 5.2.3.29.2

约去公因数。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 31250 + 4 \cdot (3125 (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4})) - 3116$

解题步骤 5.2.3.29.3

重写表达式。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 31250 + 3125 ({(x - 9)}^{\frac{1}{5}} + 5) - 3116$

解题步骤 5.2.3.30

运用分配律。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 31250 + 3125 {(x - 9)}^{\frac{1}{5}} + 3125 \cdot 5 - 3116$

解题步骤 5.2.3.31

将 $3125$ 乘以 $5$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 31250 + 3125 {(x - 9)}^{\frac{1}{5}} + 15625 - 3116$

解题步骤 5.2.4

通过加上各项进行化简。

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解题步骤 5.2.4.1

合并 $x + 25 {(x - 9)}^{\frac{4}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 25 {(x - 9)}^{\frac{4}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 31250 + 3125 {(x - 9)}^{\frac{1}{5}} + 15625 - 3116$ 中相反的项。

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解题步骤 5.2.4.1.1

从 $25 {(x - 9)}^{\frac{4}{5}}$ 中减去 $25 {(x - 9)}^{\frac{4}{5}}$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 + 0 - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 31250 + 3125 {(x - 9)}^{\frac{1}{5}} + 15625 - 3116$

解题步骤 5.2.4.1.2

将 $x + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116$ 和 $0$ 相加。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 500 {(x - 9)}^{\frac{3}{5}} - 3750 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 3750 {(x - 9)}^{\frac{2}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 31250 + 3125 {(x - 9)}^{\frac{1}{5}} + 15625 - 3116$

解题步骤 5.2.4.1.3

将 $- 3750 {(x - 9)}^{\frac{2}{5}}$ 和 $3750 {(x - 9)}^{\frac{2}{5}}$ 相加。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 500 {(x - 9)}^{\frac{3}{5}} + 0 - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 31250 + 3125 {(x - 9)}^{\frac{1}{5}} + 15625 - 3116$

解题步骤 5.2.4.1.4

将 $x + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 500 {(x - 9)}^{\frac{3}{5}}$ 和 $0$ 相加。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 250 {(x - 9)}^{\frac{3}{5}} + 1250 {(x - 9)}^{\frac{2}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 500 {(x - 9)}^{\frac{3}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 1250 {(x - 9)}^{\frac{2}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 31250 + 3125 {(x - 9)}^{\frac{1}{5}} + 15625 - 3116$

解题步骤 5.2.4.1.5

从 $1250 {(x - 9)}^{\frac{2}{5}}$ 中减去 $1250 {(x - 9)}^{\frac{2}{5}}$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 250 {(x - 9)}^{\frac{3}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 500 {(x - 9)}^{\frac{3}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 + 0 - 12500 {(x - 9)}^{\frac{1}{5}} - 31250 + 3125 {(x - 9)}^{\frac{1}{5}} + 15625 - 3116$

解题步骤 5.2.4.1.6

将 $x + 250 {(x - 9)}^{\frac{3}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 500 {(x - 9)}^{\frac{3}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250$ 和 $0$ 相加。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 250 {(x - 9)}^{\frac{3}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 500 {(x - 9)}^{\frac{3}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 31250 - 12500 {(x - 9)}^{\frac{1}{5}} - 31250 + 3125 {(x - 9)}^{\frac{1}{5}} + 15625 - 3116$

解题步骤 5.2.4.1.7

从 $31250$ 中减去 $31250$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 250 {(x - 9)}^{\frac{3}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 500 {(x - 9)}^{\frac{3}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} + 0 - 12500 {(x - 9)}^{\frac{1}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 15625 - 3116$

解题步骤 5.2.4.1.8

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 250 {(x - 9)}^{\frac{3}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 500 {(x - 9)}^{\frac{3}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} - 15625 + 250 {(x - 9)}^{\frac{3}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 15625 - 3116$

解题步骤 5.2.4.1.9

将 $- 15625$ 和 $15625$ 相加。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 250 {(x - 9)}^{\frac{3}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 500 {(x - 9)}^{\frac{3}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 0 - 3116$

解题步骤 5.2.4.1.10

将 $x + 250 {(x - 9)}^{\frac{3}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 500 {(x - 9)}^{\frac{3}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 3125 {(x - 9)}^{\frac{1}{5}}$ 和 $0$ 相加。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 250 {(x - 9)}^{\frac{3}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 3116 - 500 {(x - 9)}^{\frac{3}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} - 3116$

解题步骤 5.2.4.1.11

从 $3116$ 中减去 $3116$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 250 {(x - 9)}^{\frac{3}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} + 0 - 500 {(x - 9)}^{\frac{3}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 3125 {(x - 9)}^{\frac{1}{5}}$

解题步骤 5.2.4.1.12

将 $x + 250 {(x - 9)}^{\frac{3}{5}} + 3125 {(x - 9)}^{\frac{1}{5}}$ 和 $0$ 相加。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 250 {(x - 9)}^{\frac{3}{5}} + 3125 {(x - 9)}^{\frac{1}{5}} - 500 {(x - 9)}^{\frac{3}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 3125 {(x - 9)}^{\frac{1}{5}}$

解题步骤 5.2.4.2

从 $250 {(x - 9)}^{\frac{3}{5}}$ 中减去 $500 {(x - 9)}^{\frac{3}{5}}$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 3125 {(x - 9)}^{\frac{1}{5}} - 250 {(x - 9)}^{\frac{3}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 3125 {(x - 9)}^{\frac{1}{5}}$

解题步骤 5.2.4.3

合并 $x + 3125 {(x - 9)}^{\frac{1}{5}} - 250 {(x - 9)}^{\frac{3}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 250 {(x - 9)}^{\frac{3}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 3125 {(x - 9)}^{\frac{1}{5}}$ 中相反的项。

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解题步骤 5.2.4.3.1

将 $- 250 {(x - 9)}^{\frac{3}{5}}$ 和 $250 {(x - 9)}^{\frac{3}{5}}$ 相加。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 3125 {(x - 9)}^{\frac{1}{5}} + 0 - 12500 {(x - 9)}^{\frac{1}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 3125 {(x - 9)}^{\frac{1}{5}}$

解题步骤 5.2.4.3.2

将 $x + 3125 {(x - 9)}^{\frac{1}{5}}$ 和 $0$ 相加。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 3125 {(x - 9)}^{\frac{1}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 3125 {(x - 9)}^{\frac{1}{5}}$

解题步骤 5.2.4.4

从 $3125 {(x - 9)}^{\frac{1}{5}}$ 中减去 $12500 {(x - 9)}^{\frac{1}{5}}$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 9375 {(x - 9)}^{\frac{1}{5}} + 18750 {(x - 9)}^{\frac{1}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 3125 {(x - 9)}^{\frac{1}{5}}$

解题步骤 5.2.4.5

将 $- 9375 {(x - 9)}^{\frac{1}{5}}$ 和 $18750 {(x - 9)}^{\frac{1}{5}}$ 相加。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 9375 {(x - 9)}^{\frac{1}{5}} - 12500 {(x - 9)}^{\frac{1}{5}} + 3125 {(x - 9)}^{\frac{1}{5}}$

解题步骤 5.2.4.6

从 $9375 {(x - 9)}^{\frac{1}{5}}$ 中减去 $12500 {(x - 9)}^{\frac{1}{5}}$ 。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x - 3125 {(x - 9)}^{\frac{1}{5}} + 3125 {(x - 9)}^{\frac{1}{5}}$

解题步骤 5.2.4.7

合并 $x - 3125 {(x - 9)}^{\frac{1}{5}} + 3125 {(x - 9)}^{\frac{1}{5}}$ 中相反的项。

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解题步骤 5.2.4.7.1

将 $- 3125 {(x - 9)}^{\frac{1}{5}}$ 和 $3125 {(x - 9)}^{\frac{1}{5}}$ 相加。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x + 0$

解题步骤 5.2.4.7.2

将 $x$ 和 $0$ 相加。

$f^{- 1} (\frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}) = x$

解题步骤 5.3

计算 $f (f^{- 1} (x))$ 。

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解题步骤 5.3.1

建立复合结果函数。

$f (f^{- 1} (x))$

解题步骤 5.3.2

通过将 $f^{- 1}$ 的值代入 $f$ 来计算 $f (1024 x^{5} - 6400 x^{4} + 16000 x^{3} - 20000 x^{2} + 12500 x - 3116)$ 。

$f (1024 x^{5} - 6400 x^{4} + 16000 x^{3} - 20000 x^{2} + 12500 x - 3116) = \frac{{((1024 x^{5} - 6400 x^{4} + 16000 x^{3} - 20000 x^{2} + 12500 x - 3116) - 9)}^{\frac{1}{5}} + 5}{4}$

解题步骤 5.3.3

从 $- 3116$ 中减去 $9$ 。

$f (1024 x^{5} - 6400 x^{4} + 16000 x^{3} - 20000 x^{2} + 12500 x - 3116) = \frac{{(1024 x^{5} - 6400 x^{4} + 16000 x^{3} - 20000 x^{2} + 12500 x - 3125)}^{\frac{1}{5}} + 5}{4}$

解题步骤 5.4

由于 $f^{- 1} (f (x)) = x$ 和 $f (f^{- 1} (x)) = x$ ，因此 $f^{- 1} (x) = 1024 x^{5} - 6400 x^{4} + 16000 x^{3} - 20000 x^{2} + 12500 x - 3116$ 为 $f (x) = \frac{{(x - 9)}^{\frac{1}{5}} + 5}{4}$ 的反函数。

$f^{- 1} (x) = 1024 x^{5} - 6400 x^{4} + 16000 x^{3} - 20000 x^{2} + 12500 x - 3116$

代数 示例

代数示例