What is the answer to 0=1-9/(x^2) ?

The answer to 0=1-9/(x^2) is x=3,x=-3

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0=1-9/(x^2)

0 = 1 - \frac{9}{x ^{2}}

x = 3, x = - 3

Solution steps

0 = 1 - \frac{9}{x ^{2}}

Move

1

to the left side

- 1 = - \frac{9}{x ^{2}}

Multiply both sides by

x^{2}

- x^{2} = - 9

Solve

- x^{2} = - 9 : x = 3, x = - 3

x = 3, x = - 3

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 3, x = - 3

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

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

\frac{4}{x ^{2}} + \frac{4}{x} = 3

\frac{2}{( x + 1 ) ^{2}} = 0

y, x = \frac{2 + y}{2 - y}