What is the answer to 0=1-4/(x^2) ?

The answer to 0=1-4/(x^2) is x=2,x=-2

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0=1-4/(x^2)

0 = 1 - \frac{4}{x ^{2}}

x = 2, x = - 2

Solution steps

0 = 1 - \frac{4}{x ^{2}}

Move

1

to the left side

- 1 = - \frac{4}{x ^{2}}

Multiply both sides by

x^{2}

- x^{2} = - 4

Solve

- x^{2} = - 4 : x = 2, x = - 2

x = 2, x = - 2

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 2, x = - 2

\frac{x ^{2} - x - 2}{x - 3} = 0

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

\frac{1}{x + 7} + 1 = - \frac{x}{x + 7}

\frac{2 x + 2}{x - 1} - \frac{6}{x} = 2

- \frac{9}{x} + 2 x = - 7