What is the answer to 9-4/(x^2)=0 ?

The answer to 9-4/(x^2)=0 is x= 2/3 ,x=-2/3

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9-4/(x^2)=0

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

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

Solution steps

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

Multiply both sides by

x^{2}

9 x^{2} - 4 = 0

Solve

9 x^{2} - 4 = 0 : x = \frac{2}{3}, x = - \frac{2}{3}

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

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

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

\frac{3}{342} = \frac{4}{x}

3 - \frac{x}{x - 4} = \frac{4}{4 - x}

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

- f (a) = \frac{4 x - 1}{7 x + 4}

e^{- 2} + 1 = 0