What is the answer to x^{-2}=1 ?

The answer to x^{-2}=1 is x=1,x=-1

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x^{-2}=1

x^{- 2} = 1

x = 1, x = - 1

Solution steps

x^{- 2} = 1

Refine

\frac{1}{x ^{2}} = 1

Multiply both sides by

x^{2}

1 = x^{2}

Solve

1 = x^{2} : x = 1, x = - 1

x = 1, x = - 1

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 1, x = - 1

x, z = y - \frac{m}{x}

\frac{11}{4 x} + 9 = 3

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

\frac{2}{x} = \frac{4}{5 x} + 2

\frac{x ^{3}}{2 x ^{5}} = 2