Solve |(x)^(2)-81|=81-(x)^(2) | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$| { x }^{ 2 } -81|=81- { x }^{ 2 }$$

Solve for x

$x\in \begin{bmatrix}-9,9\end{bmatrix}$