How do you solve $x^{- 4} - 5 = 76$ $x^ { - 4} - 5= 76$ ?

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How do you solve $x^{- 4} - 5 = 76$ $x^ { - 4} - 5= 76$ ?

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Answer 1 · 2017-02-02T00:51:11

$x = \frac{1}{3}$ $x=1/3$

Explanation:

Here is the process to get the answer:
$x^{- 4} - 5 = 76$ $x^-4-5=76$
$x^{- 4} = 76 + 5 = 81$ $x^-4=76+5=81$
$x^{- 4} = \frac{1}{x^{4}} = 81$ $x^-4=1/x^4=81$
$\frac{1}{81} = x^{4}$ $1/81=x^4$
$x = \sqrt[4]{\frac{1}{81}}$ $x=root(4)(1/81)$
$x = \frac{1}{3}$ $x=1/3$

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How do you solve $x^{- 4} - 5 = 76$ $x^ { - 4} - 5= 76$ ?

1 Answer

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How do you solve $x^{- 4} - 5 = 76$ $x^ { - 4} - 5= 76$ ?