What is the answer to x-81x^{-3}=0 ?

The answer to x-81x^{-3}=0 is x=3,x=-3,x=3i,x=-3i

Solve for x: x-81x^{-3}=0

The solution is x=3,x=-3,x=3i,x=-3i

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x - 81 x^{- 3} = 0

x = 3, x = - 3, x = 3 i, x = - 3 i

Solution steps

x - 81 x^{- 3} = 0

Refine

x - \frac{81}{x ^{3}} = 0

Multiply both sides by

x^{3}

x^{4} - 81 = 0

Solve

x^{4} - 81 = 0 : x = 3, x = - 3, x = 3 i, x = - 3 i

x = 3, x = - 3, x = 3 i, x = - 3 i

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 3, x = - 3, x = 3 i, x = - 3 i

E, T = \frac{3 U}{E}

\frac{1}{x - 3} - \frac{5}{x + 4} = 2

\frac{6}{14} = \frac{7}{x - 3}

\frac{3}{x} = \frac{15}{8 x} + 3

\frac{w + 14}{4 w + 6} = \frac{3}{4}

What is the answer to x-81x^{-3}=0 ?
The answer to x-81x^{-3}=0 is x=3,x=-3,x=3i,x=-3i
Solve for x: x-81x^{-3}=0
The solution is x=3,x=-3,x=3i,x=-3i